cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-2sn5ppl
title: 16692

description: In order to fully characterize the high-z systems probed by JWST comma  it is essential that we prepare a robust rest-UV diagnostic toolkit to determine their physical and chemical properties. Crucially comma  such diagnostics must incorporate the element that emits strongest in the UVdoublePoint carbon. Despite now having a suite of CIIICORCHETE_CLOSE comma  HeII comma  OIIICORCHETE_CLOSE comma  and CIV UV emission lines from high-z analogue systems at our fingertips from CLASSY comma  we are prevented from deriving accurate diagnostics because we lack a thorough understanding of the conditions affecting carbon emission in high-z environments. One key species is missingdoublePoint CORCHETE_OPENCIICORCHETE_CLOSE. Here we propose to observe the CORCHETE_OPENCIICORCHETE_CLOSE 2325A multiplet in a sample of 12 CLASSY galaxies using STIS-G230L spectroscopy comma  thus building on pre-existing HST-COS spectroscopy to deliver essential insight into the diagnostic utility comma  production comma  and abundance of carbon. Our carefully chosen UV-emitting sample spans a wide range of high-z properties comma  including low-metallicity comma  high SFRs comma  and high ionization parameters. Using this important multiplet we will (i) provide the first empirical calibration of a highly-promising UV-based metallicity diagnostic comma  C23-HeII  (ii) decipher the ionization structure of C in each system by harnessing all of carbon.s ionization stages (C+ comma  C2+ comma  C3+)  (iii) derive highly accurate C-O abundances that do not rely on ionization correction factors (ICF)  (iv) construct ICF grids for C to enable future C-O measurements in high-z systems. This study provides the first opportunity to thoroughly explore the origin of carbon in a range of high-z environments comma  thus exploiting its full potential as a chemical and physical diagnostic in the JWST era.
DOI: 10.15156/bio/sh1283882.09fu
title: SH1283882.09FU

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-2ss3155
title: 16933

description: M dwarf stars are the most abundant stars in the galaxy and have a high frequency of Earth-sized planets comma  making them the favored targets of upcoming missions to detect and characterize exoplanets.  However comma  these stars are known to exhibit high levels of activity and flaring comma  which can deplete a planet.s atmosphere of water and ozone over time comma  raising questions about the habitability of planets around these stars.  It is clear that there is still much to be learned about M dwarfs comma  their activity comma  and the potential habitability of their planetary systems.  Monitoring campaigns with simultaneous observations across a broad range of wavelengths are needed in order to determine how stellar flaring emission correlates across the electromagnetic spectrum.  Here comma  we propose to conduct such a campaign using HST STIS for four nearby M dwarfs comma  spectral analogues of Proxima Cen spanning a range of ages and activity levels.  We have already been awarded observing time with ALMA comma  Swift comma  NICER comma  and ground-based optical facilities that will be executed simultaneously between now and October 2022.  These HST DDT observations are the only way to add FUV coverage to this campaign.  Recent observations of Proxima Cen suggest that UV and millimeter emission trace each other closely during flares comma  and this proposed study will show whether this is a universal property of mid-M dwarfs regardless of age. By deriving a scaling relation between millimeter and UV emission comma  we will have a powerful new tool to determine the UV environment of stars and their potential to host habitable planets comma  and be able to capitalize on existing all-sky cosmology surveys at millimeter and radio wavelengths.
DOI: 10.15156/bio/sh1283883.09fu
title: SH1283883.09FU

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-2xjyr9t
title: 16220

description: We wish to use 5 orbits of HST-WFC3 time to observe an eclipse spectrum of the only known transiting brown dwarf that has all of its physical properties independently measured at high precision comma  and that receives a negligible amount of external irradiation. Brown dwarfs evolve in both radius and temperature as they age comma  changing their atmospheric spectral emission with time. Understanding this evolution is important because it informs us about their interior structure comma  which ultimately helps constrain where the dividing line is between brown dwarfs that form through d_commastar-liked_comma Jeans-collapse or d_commaplanet-liked_comma accretion. However comma  a fundamental problem in brown dwarf evolution and atmosphere models has been our inability to directly measure their basic physical properties comma  and no one has yet observed the atmosphere of a non-irradiated brown dwarf where we know all of them. The discovery of our target system finally allows us to conduct just this sort of observation using HST-WFC3 -- in conjuntion with archival Spitzer eclipse observations at 3.6um and 4.5um. Measuring the emission spectrum will allow us to perform a set of tests on brown dwarf evolution and atmospheres models with an an over-constrained physical system with no major free parameters. The results will provide a one-of-a-kind observational anchor for brown dwarfs.
DOI: 10.57780/esa-2z0jf07
title: 16853

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/sh1283884.09fu
title: SH1283884.09FU

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-32nlq4n
title: 16526

description: This program continues the CCD anneal cycle that has taken place every 4 weeks for the last 15 observing cycles. WFC bias frames and dark exposures are obtained before and after each anneal. These bias and dark frames supplement those obtained via the ACS Daily Monitor program during the appropriate week.
DOI: 10.15156/bio/sh1283885.09fu
title: SH1283885.09FU

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-32yj9kv
title: 17105

description: Characterizing the structure and kinematics of the gas surrounding supermassive black holes at the centers of galaxies is crucial for understanding accretion and black-hole growth comma  as well as outflows and associated feedback for host-galaxy evolution. Intensive comma  successful reverberation mapping campaigns with HST on the active galactic nuclei (AGN) of NGC 5548 (Cycle 20) and Mrk 817 (Cycle 28) have revealed a wealth of information on the structure of their broad-emission-line regions (BLR) comma  their accretion disks comma  and the new comma  unexpected obscuring outflows visible in their X-ray and far-UV spectra. The BLR of these AGN are dominated by virial motions comma  and the obscuring outflows play a significant role in regulating the ionizing flux reaching the BLR gas. Although HST observations of Mrk 817 are complete comma  continued monitoring in X-ray comma  UV comma  and optical with Swift (2 years comma  every other day) comma  NICER (1 year comma  every other day) comma  and ground-based observatories have been approved and are ongoing (private communication). To take advantage of these multi-wavelength programs comma  we propose to continue observing Mrk 817 with COS comma  with a cadence of one orbit per month throughout Cycle 30. Our primary science goal is to monitor the continued evolution of the obscuring outflow comma  perhaps even watching as it dissipates  measure its continued impact on the characteristics of the BLR  and comma  via a triggered observation comma  do a comprehensive broad-band evaluation of the state of Mrk 817.s accretion disk and broad emission-line properties once the obscuration has melted away.
DOI: 10.57780/esa-36pr797
title: 17203

description: The mass-loss mechanism for stripped-envelope supernovae (SESNe) remains debated comma  but indirect evidence is mounting in support of binary stars. It wasn.t until 2014 comma  however comma  that the community obtained the first direct post-explosion detection of a surviving companion to a SESN (Type IIb SN 1993J). Since then comma  there have been four more comma  including the first fully stripped Type Ib-c SN 2013ge this past year. The field is now past the point of targeting individual systems one at a time. A statistically complete companion-mass distribution (including deep upper limits) can provide important constraints on the underlying physics used in binary evolution models (e.g. comma  winds comma  rotation comma  metallicity comma  nuclear burning instabilities) comma  which in turn has far-reaching implications in all of astrophysics comma  including merger sources for gravitational waves. Building the proper dataset is a slow process given the small number of viable candidates each year (considering distance comma  extinction comma  etc.). Here we propose optical+UV observations at the sites of the two most viable SESNe targets of this year to detect (or place meaningful limits on) any surviving companion. NUV (F275W-F336W) imaging offers an optimum detection strategy for the expected hot comma  blue stellar companions comma  while optical imaging can rule out shock interaction contributions and probe less likely comma  but possible comma  cooler star companions. We also propose ongoing monitoring of SN 2013ge.  Given HST.s time horizon comma  the degrading UV response on WFC3 comma  and the requisite waiting period to allow the SN to fade before conducting a companion search comma  now is the time to take full advantage of HST.s unique UV capabilities.
DOI: 10.15156/bio/sh1283886.09fu
title: SH1283886.09FU

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: 10.15156/bio/sh1283887.09fu
title: SH1283887.09FU

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: 10.15156/bio/sh1283888.09fu
title: SH1283888.09FU

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: 10.15156/bio/sh1283889.09fu
title: SH1283889.09FU

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: 10.15156/bio/sh1283890.09fu
title: SH1283890.09FU

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-393r3gw
title: 16993

description: The binary asteroid 288P is unusual both for its sublimation-driven activity and for its peculiar mutual orbit combining similarly-sized components with a wide separation and high eccentricity. The second half if 2022 will witness the 288P system emerging from its second perihelion passage after the binary nature was discovered. We here seek to verify the possibility indicated by earlier HST observations that the mutual orbit was perturbed by an outgassing-induced torque during the 2016-17 perihelion passage. If confirmed comma  the activity could have led to the unusually wide semimajor axis that cannot be achieved directly from rotational fission. In addition we seek to consolidate the identity of the active component(s) to find out if the activity is a direct consequence of the splitting event leading to binary formation. We also aim to constrain the size of the largest dust particles emitted from the active component(s) that is diagnostic of the strength of sublimation and the potential role played by fast rotation in lifting the dust. Finally comma  we seek to understand whether the level of activity is constant between apparitions comma  or if a trend can be identified that would indicate the evolution of exposed ice on main belt asteroids with time. We request five orbits of HST-WFC3 time to be scheduled at roughly 4 week intervals between August and December 2022. These data will allow us to measure the brightness and separations of the components and the evolution of dust lingering from the perihelion passage in winter 2021-22. Only HST is able to spatially resolve the components (max. separation 0.1 arcsec) and central dust cloud of this faint (V=22mag) target.
DOI: 10.15156/bio/sh1283891.09fu
title: SH1283891.09FU

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.