cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1284140.09fu
title: SH1284140.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-kj715yo
title: 16737

description: Determination of the mass density profiles of dwarf galaxies (and specifically whether there is a central core or cusp) provides a critical test of both the properties of dark matter (DM) and the physics of cosmological structure formation. The nearby classical dwarf spheroidal galaxies (dSphs) of the Milky Way yield some of the best dynamical constraints. While large line-of-sight velocity datasets exist (some thousand stars per galaxy) comma  interpretation is hindered by the well-known mass vs. velocity-anisotropy degeneracy of stellar dynamics. This can be resolved with proper motion (PM) measurements that yield 3-D velocity information. This is beyond the reach of Gaia comma  given the small velocity dispersions of dSphs and the absence of bright stars. HST is the only observatory that can advance this problem comma  given its combination of photometric depth comma  high spatial resolution comma  and long time baselines. We propose to obtain HST imaging of five previously imaged fields in the nearby Draco and Sculptor dSphs comma  to obtain high-accuracy PMs for thousands of stars in these galaxies. This provides a direct determination of their velocity anisotropy profiles comma  and combined with dynamical models comma  tightly constrains the slopes of their DM density profiles. The results will give unique constraints on both the nature of DM comma  and the physical mechanisms that shape DM density profiles in galaxies. No comparable measurements exist to date. The proposed program therefore shows how HST can still be used comma  after 30 years in orbit comma  to tackle unanswered fundamental questions in astrophysics.
DOI: 10.57780/esa-kl24ija
title: 17188

description: Massive stars have dramatic impacts throughout the universe comma  but their birth comma  deep within dusty molecular clouds comma  is literally shrouded in uncertainty. However comma  during this process comma  powerful outflows blast open low density cavities and NIR light shines out from the forming star comma  beamed as if from a lighthouse through turbulent storm clouds. This light carries crucial information that can guide us to a deeper understanding of massive star formation. We propose WFC3-IR observations of 10 high-luminosity protostars comma  selected to already have well-studied properties via MIR-FIR data. The sources comma  along with 5 others with archival HST images comma  form a sample to be analyzed uniformly with the following goalsdoublePoint 1) Characterize J  and  H band continuum emission from massive protostars comma  including faint comma  extended emission. Radiative transfer simulations show such NIR emission is mostly scattered light emerging from outflow cavities comma  thus enabling measurement of their structure comma  radiation fields  and  dust content  2) Detect Pa-beta  and  CORCHETE_OPENFeIICORCHETE_CLOSE emission tracing shock-  and  photo-ionized regions comma  important diagnostics of the protostars and their outflows  3) Search for low-mass stars that may be clustered around the massive protostars comma  as predicted in Competitive Accretion models comma  with the observations especially probing in the low extinction outflow cavities. WFC3-IR.s sensitivity comma  angular resolution and field of view are essential for this study. The project allows a first exploration of correlations of outflow and cluster environment properties with basic protostellar parameters comma  e.g. comma  mass comma  luminosity  and  evolutionary stage comma  and thus enables groundbreaking tests of massive star formation theories.
DOI: 10.15156/bio/sh1284141.09fu
title: SH1284141.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-klozsjl
title: 16595

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over virgul150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul40 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.57780/esa-kphzrzz
title: 16594

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over virgul150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul40 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.15156/bio/sh1284142.09fu
title: SH1284142.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-ku42o3n
title: 16805

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over virgul150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul40 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.15156/bio/sh1284143.09fu
title: SH1284143.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-kub6142
title: 17210

description: The supernova remnant Cassiopeia A (Cas A) provides the clearest look at the properties and explosion dynamics of a core-collapse supernova (CCSN). With an explosion date around 1670 comma  Cas A is the youngest Galactic core-collapse SNR known and comma  at an estimated distance of 3.4 kpc comma  it is also among the closest and brightest. However comma  Cas A exhibits significant changes in its emission structure on timescales as short as 1-2 years comma  and large-scale changes in one or two decades comma  meaning that upcoming multi-wavelength investigations require nearly contemporaneous comma  high-resolution optical observations.  This proposal describes a multi-bandpass ACS imaging program with the goals ofdoublePoint 1) a high-resolution optical survey that can discriminate O-Ne rich ejecta from S-Ar-Ca rich ejecta comma  thereby assisting new multi-wavelength studies of Cas A.s ejecta and its dust content comma  including JWST approved Cycle 1 Near and Mid-IR observations comma   deep new 50 to 100 ksec Chandra high spatial resolution X-ray observations comma  and high spectral resolution X-ray data from the upcoming XRISM mission comma  2) resolve the remnant.s newly emerging and freshly reverse shocked O-Ne rich and S-Ar-Ca rich ejecta along the southern limb and north-central region comma  3) add new constraints on reverse shock velocity estimates across multiple regions comma  and 4) measure the proper motions of the remnant.s highest-velocity (8000 to 14 comma 500 km-s) outer ejecta providing improved age and explosion center estimates plus deceleration measurements probing the density and arrangement of the local circumstellar medium as well as ejecta knot lifetimes.
DOI: 10.57780/esa-kuw3vrs
title: 16310

description: C-2019 Q4 (Borisov) is the first interstellar comet and only the second interstellar object (after .Oumuamua) ever identified within the solar system.  We propose high resolution observations with WFC3 and HST in order to probe the development of this body in Cycle 28.  During this time we will use HST and WFC3 to constrain the nucleus and dust properties.  Observation as the Earth passes through the projected orbit plane early in the Cycle will provide a model-free estimate of the dust extent and velocity perpendicular to the plane.  Additional comma  spaced observations provide perspectives as the object recedes from about 9 to about 13 AU.  The high resolution of HST is needed to resolve faint near-nucleus structures (jets comma  fans) and fragments at the growing distance to the comet.  The proposed observations extend the temporal coverage of the evolution of this unique object and take advantage of new perspectives.
DOI: 10.15156/bio/sh1284144.09fu
title: SH1284144.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-kv988cq
title: 16837

description: High resolution multi-wavelength maps of the nuclear regions of active galaxies reveal an increasingly complex view comma  with AGN comma  LINER and star-formation co-existing in the same comma  often highly obscured comma  nucleus. The ongoing deep high resolution spectral-spatial mapping of Compton-thick (CT) AGNs with Chandra explores one aspect of this multi-faceted activity. However comma  there are no comparable X-ray studies of LINERs. We propose deep Chandra ACIS-S observations of the nearby (virgul17 Mpc) LINER NGC 5005 (250 ks) comma  for which the archival snapshot suggests an extended ionized region comma  akin to an AGN ionization cone. To get a fuller detailed picture of the AGN-host interaction comma  we propose 11 orbits with HSTWFC3 for diagnostic optical emission line imaging.
DOI: 10.15156/bio/sh1284145.09fu
title: SH1284145.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-kwsh190
title: 16328

description: The performance of the MAMA microchannel plate can be monitored using a MAMA fold analysis procedure. The fold analysis provides a measurement of the distribution of charge cloud sizes incident upon the anode giving some measure of changes in the pulse-height distribution of the MCP and comma  therefore comma  MCP gain. This proposal executes the same steps as Cycle 27 comma  Proposal 15777.
DOI: 10.15156/bio/sh1284146.09fu
title: SH1284146.09FU

description: UNITE provides a unified way for delimiting, identifying, communicating, and working with DNA-based Species Hypotheses (SH). All fungal ITS sequences in the international nucleotide sequence databases are clustered to approximately the species level by applying a set of dynamic distance values (<0.5 - 3.0%). All species hypotheses are given a unique, stable name in the form of a DOI, and their taxonomic and ecological annotations are verified through distributed, web-based third-party annotation efforts. SHs are connected to a taxon name and its classification as far as possible (phylum, class, order, etc.) by taking into account identifications for all sequences in the SH. An automatically or manually designated sequence is chosen to represent each such SH. These sequences are released (https://unite.ut.ee/repository.php) for use by the scientific community in, for example, local sequence similarity searches and next-generation sequencing analysis pipelines. The system and the data are updated automatically as the number of public fungal ITS sequences grows.
DOI: 10.57780/esa-kwxgdxu
title: 16589

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target virgul165 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul67 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.57780/esa-kxmlk1a
title: 16790

description: Long time base observations of the outer planets are critical in understanding the atmospheric dynamics and evolution of the gas giants.  We propose yearly monitoring of each giant planet for the remainder of Hubble.s lifetime to provide a lasting legacy of increasingly valuable data for time-domain studies.  The Hubble Space Telescope is a unique asset to planetary science comma  allowing high spatial resolution data with absolute photometric knowledge.  For the outer planets comma  gas-ice giant planets Jupiter comma  Saturn comma  Uranus and Neptune comma  many phenomena happen on timescales of years to decades comma  and the data we propose are beyond the scope of a typical GO program.  Hubble is the only platform that can provide high spatial resolution global studies of cloud coloration comma  activity comma  and motion on a consistent time basis to help constrain the underlying mechanics.  Note that Saturn is not requested until 2018 comma  when orbit allocation would increase from 29 to 41  here we show the orbits for Cycle 29.