cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-dtm4zcd
title: 16209

description: Nebular emission lines in the far ultraviolet are rapidly drawing attention as quantitative diagnostics of nebular gas.  In the coming decades comma  they will be among the few information-carriers regarding the ionized ISM of faint galaxies at the highest redshifts.  In particular comma  the C IV 1550 AA and He II 1640 AA lines are very prevalent in low-metallicity dwarf starbursts.  However when using them to estimate the conditions in the ISM comma  C IV and He II diagnostics provide degenerate solutions between photo- and shock-ionization scenarios.   Here we propose to obtain emission line images of two nearby starburst galaxies with the strongest emission in He II recombination line and C IV 1550 AA doublet. This will be the first C IV emission imaging ever performed.  The targets are well-known low-metallicity starbursts comma  and analogs of galaxy building blocks at the highest redshifts.  We will measure the C IV and He II light profile comma  and compute the total C IV (large-aperture) luminosity for the first time.  Most importantly we will map line ratios involving C IV comma   He II comma  and H-alpha at virgul20 pc resolution comma  while state-of-the-art modeling will derive the ionizing output of the star clusters. Hence we will directly couple stellar parameters to nebular diagnostics on the requisite spatial scales.  Our results will determine the impact of photoionization and shocks to UV line diagnostics comma  which will be pivotal for understanding the ISM conditions of the earliest galaxies.
DOI: 10.15156/bio/sh1284050.09fu
title: SH1284050.09FU

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-dudjr6r
title: 16907

description: This program will determine the line spread functions (LSFs) and spectral resolution obtained with the G160M grating at the Cosmic Origins Spectrograph.s (COS) sixth lifetime position. Well-constrained LSFs allow users to evaluate the feasibility and S-N constraints of their observations comma  as well perform line profile fitting on their data. COS periodically shifts where its targets. light lands on the detector to avoid gain sag. The sixth of these d_commalifetime positionsd_comma (LPs) will become active for G160M exposures in Cycle 30. COS. LSFs and spectral resolution change with LP and with the grating and central wavelength settings used. This program will make observations to constrain the LSFs of two G160M central wavelength settings (cenwaves) comma  G160M-1533 and G160M-1623 comma  which encompass the range of cenwaves moving to LP6. We will acquire G160M-1533 and G160M-1623 spectra of the SMC blue supergiant star AV75 comma  whose spectrum contains both narrow ISM absorption lines and complex convolved lines. We expect a S-N of 60 per resolution element at 1600 Angstroms. We will then convolve existing STIS E140M spectra of AV75 with various versions of the optically-modelled COS LP6 LSFs comma  and determine which convolutions best agree with the COS spectra gathered here. These will be selected as the COS LP6 LSFs and used to determine the spectral resolution.
DOI: 10.57780/esa-dyfojsb
title: 16974

description: This program continues the CCD anneal cycle that has taken place every 4 weeks for the last 16 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/sh1284051.09fu
title: SH1284051.09FU

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-dzo3kgy
title: 16704

description: We propose to observe the large Uranian satellites Ariel comma  Umbriel comma  Titania comma  and Oberon comma  using the Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope (HST) comma  to investigate whether their surface compositions are modified by charged particles trapped in Uranus. magnetosphere. The large Uranian moons are candidate ocean worlds comma  with surfaces that are rich in CO2 ice. The origin of CO2 ice on these moons is uncertain comma  but it could be formed by ongoing charged particle bombardment of native H2O ice and C-rich material on their surfaces. Alternatively comma  CO2 ice could be native to these moons and sourced from their interiors comma  hinting at recent geologic activity.  To investigate whether charged particles modify these four moons. surface compositions comma  we will collect UV spectra and conduct a series of measurementsdoublePoint (1) compare the near-UV (300 nm) albedos of each moon.s leading and trailing hemisphere to characterize longitudinal and radial trends in charged particle irradiation  (2) measure an absorption band that spans 257 to 360 nm comma  attributed to trapped OH formed by charged particle irradiation of H2O ice comma  on each moon.s leading and trailing hemisphere to characterize longitudinal and radial trends in the distribution of this feature  (3) compare the distribution of the 280-nm trapped OH band to the distribution of CO2 ice  (4) compare these new STIS spectra that would be collected over the northern hemispheres of these moons (sub-observer lat. 55 N) to archived HST-FOS spectra that were collected over their southern hemispheres (sub-observer lat. 45 S) to characterize any latitudinal trends in charged particle irradiation that might be present.
DOI: 10.15156/bio/sh1284052.09fu
title: SH1284052.09FU

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-e06cth0
title: 16065

description: The recent discovery of Pi Men c comma  a super-Earth transiting an outstandingly bright nearby star (V = 5.67  18 pc) comma  presents an unrivalled opportunity to study the atmosphere of a small planet just above the radius-period valley. While the expected transit signature of the atmosphere in the optical-infrared is very small comma  the high-energy environment of the planet is thought to be favourable for large transit absorption features in the far-ultraviolet due to an escaping comma  extended upper atmosphere. Using simultaneous XMM-Newton and HST observations comma  we propose to perform both a full reconstruction of the differential emission measure in order to characterise the high-energy irradiation impingent on the planet comma  and a sensitive search for evaporation signals due to these photons.
DOI: 10.57780/esa-e0q0an5
title: 16862

description: WFC3-ISR 2021-13 constructed table-based CTE corrections for photometry and astrometry for backgrounds between 5e and 30e.  The astrometric corrections in that ISR were somewhat ad hoc comma  since the calibration observations were not optimized for astrometry (there were degeneracies at the bright-star end).  In this two-orbit program comma  we will (1) provide photometric corrections all the way up to 100e background comma  and (2) we will provide explicit astrometric corrections for all background levels comma  from 10e to 100e.  We will use the data collected in this program to update the table-based correction.  We will put together a quick ISR to present the analysis and construct the table.
DOI: 10.15156/bio/sh1284053.09fu
title: SH1284053.09FU

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-e38je92
title: 16236

description: A new class of exoplanets called ultra-hot Jupiters has recently been recognized  these gas-giant exoplanets are on extremely close orbits around their host stars and have dayside atmospheres which reach >2500 K. Ultra-hot Jupiters are so strongly irradiated that many of the molecules comma  including the dominant constituent hydrogen comma  will thermally dissociate on their daysides and may recombine on their cooler nightsides. Significant mass loss and tidal distortion have also been predicted for some ultra-hot Jupiters. However comma  there are currently few ultra-hot Jupiters whose entire atmospheres are well characterized comma  and additional high precision observations are required to test recent model predictions. We therefore propose to collect one HST-WFC3 G141 spectroscopic full-orbit phasecurve of WASP-12b - the prototypical ultra-hot Jupiter - in order to create longitudinally resolved temperature and chemical maps comma  to understand the enormous ellipsoidal variations seen at 4.5 microns comma  and to better constrain the planet.s orbital decay rate and the stellar tidal quality factor.
DOI: 10.57780/esa-e8lr4v0
title: 16830

description: The FUV gratings are the most used modes on COS.  They have experienced changes in sensitivity since the instrument was installed.  The trends in the time-dependent spectroscopic sensitivity depend on the grating comma  segment and wavelength.  This calibration proposal is to monitor the sensitivity of each FUV grating mode at several cenwave settings on an approximately bi-monthly schedule comma  and to characterize the observed trends.
DOI: 10.15156/bio/sh1284054.09fu
title: SH1284054.09FU

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-e8qaktp
title: 16351

description: The purpose of this program is to monitor the sensitivity of the MAMA detectors over the full field. This is achieved by observing the globular cluster NGC6681 once during the cycle. The data can be directly compared with similar data obtained in previous cycles.
DOI: 10.15156/bio/sh1284055.09fu
title: SH1284055.09FU

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/sh1284056.09fu
title: SH1284056.09FU

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-eayx1mr
title: 16110

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-eci03ok
title: 16923

description: Neutron star mergers are confirmed sites of r-process nucleosynthesis comma  observationally identified by their kilonovae. In particular comma  the study of short gamma-ray bursts (SGRBs) comma  which span zvirgul0.1-2 comma  are a promising avenue to uncover kilonovae. Monitoring the temporal and color evolution of SGRB-kilonovae provides quantifiable estimates of their ejecta masses and compositions comma  of interest to assessing the contribution of such mergers to the universe.s heavy element budget. In particular comma  the identification of nearby (z<0.1) kilonovae provide great distinguishing power. Recently comma  GRB 211211A was discovered in likely association with a galaxy at 350 Mpc (z=0.076). At this distance comma  the detection and temporal behavior of an associated NIR transient is fully consistent with a kilonova. If the distance is confirmed comma  this would make GRB 211211A the most nearby such event beyond the multi-messenger GW170817. We propose 2 orbits of HST imaging to secure the nearby origin of GRB 211211A by placing constraints on an underlying comma  unseen galaxy. Current ground-based observations have reached their limits comma  and cannot rule out the full range of known host galaxy luminosities and redshifts. If an underlying galaxy is detected from a higher-redshift origin comma  the NIR transient would be equally exciting comma  outshining any known kilonova or supernova to date.
DOI: 10.15156/bio/sh1284057.09fu
title: SH1284057.09FU

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-eg3wc68
title: 16449

description: The HI Lyman alpha line dominates the ultraviolet emission of late type-stars. Observing Lyman alpha is vital for projects that wish to understand the chromospheric structure and behaviour of stars comma  as well as modeling the chemistry and characteristics of exoplanetary atmospheres. However comma  observing the Lyman alpha line is extremely difficult due to obscuration from the Interstellar Medium and telluric airglow. The numerous HST programs observing Lyman alpha lines rely on reconstruction models comma  which take what parts of the line can be observed and comma  via various recipes comma  infer the integrated flux and profile of the rest of the line. Testing the accuracy of such reconstruction techniques is difficult comma  requiring a system where the line can be observed in an obscured state and compared with the unobscured line. We have identified a system where this is possibledoublePoint A close white dwarf-M dwarf binary where the high radial velocity change over the binary orbit moves the M dwarf Lyman alpha line in and out of obscuration. We propose to obtain phase-resolved STIS spectroscopy of the system to observe the Lyman alpha line at different levels of obscuration comma  which will then be tested against the maximum velocity comma  unobscured line. We describe our detailed planning of the experimental set up to calculate the small investment of HST time required and account for complexities such as flaring and coronal heating. This experiment will provide an unprecedented test of the Lyman alpha reconstructions that are at the heart of multiple past comma  present and (most likely) future HST programs.