cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1283990.09fu
title: SH1283990.09FU

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-a3wy11l
title: 16758

description: Advances in the latter half of the past decade have uncovered the prevalence of ultra-diffuse galaxies (UDGs) across all environments comma  from cluster cores to the field. These galaxies are challenging to fit into our standard picture of galaxy formation and are thus of great interest to both observers and theorists. Owing to the observational challenges presented by such diffuse stellar distributions comma  one of the most effective means of constraining the properties of UDGs is their globular cluster (GC) systems. HST has already played a vital role in characterizing the richness and form of the GC populations of UDGs comma  finding that some host extremely rich and anomalously bright GC systems comma  as well as providing some of the first estimates of the halo masses of UDGs. However comma  to date all such studies have focused on UDGs in dense environments. Here we propose a snapshot imaging program with WFC3-UVIS to make the first measurements of the GC systems of bona fide field UDGs. Although more challenging to identify and confirm than UDGs in clusters and groups comma  field UDGs are thought to constitute a major fraction of the overall UDG population and likely represent the original formation pathway for many UDGs that subsequently fell into groups. Comparison of the GC systems of these two populations is an ideal means to test whether they have physically similar origins comma  but as yet we know little of the GCs in field UDGs. The proposed observations would also provide a key reference sample for numerous other works investigating the potential formation mechanisms of UDGs and other low surface brightness galaxies comma  which in turn may hold clues to some of the small scale problems of LCDM.
DOI: 10.15156/bio/sh1283991.09fu
title: SH1283991.09FU

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-a4ld0x1
title: 16845

description: The brightest central galaxies (BCGs) are the largest and the most massive galaxies in the universe. Their origin is still under debate but major mergers should play a key role. While there have been several dramatic examples of local BCGs forming via dry mergers comma  BCGs are believed to mainly form with wet major mergers at high z and there has not been a local analog of such systems. We have searched for BCGs forming via wet major mergers in the local universe and have found a spectacular example of a trio of star forming galaxies with comparable luminosities and within 15 kpc from each other. We propose joint Chandra-HST observations to study AGN comma  ULXs comma  diffuse X-ray emission and mergers in this rare system. The results will shed light on the important early stage of BCG formation.
DOI: 10.57780/esa-a8ac9it
title: 17070

description: Hydrogen-rich (Type II) supernovae exhibit enormous photometric and spectroscopic diversity that is still poorly understood despite being the largest sub-class of supernovae in volume-limited surveys and having a large sample of directly detected progenitor stars.  Much of this diversity is driven by mass loss comma  which strips the progenitor star and pollutes its circumstellar environment with gas and dust.  HST can make significant contributions to understanding both the properties of the progenitor system and nature of the circumstellar environment through targeted observations of a large comma  statistical sample of Type II supernovae.  We will use multi-band imaging to resolve the stellar population around a large number of Type II supernovae comma  enabling isochrone fitting and thus an initial mass estimate comma  and producing the largest and most constraining sample to date of progenitor star initial mass estimates.  We will also look for late-time emission from nearby supernovae comma  potentially revealing delayed circumstellar interaction and uncovering modes of mass loss from centuries before explosion.  For the closest events comma  our observations will enable us to search for surviving companion stars to Type II supernovae comma  connecting the spectroscopic and photometric diversity we see to the configuration of their progenitor systems.
DOI: 10.15156/bio/sh1283992.09fu
title: SH1283992.09FU

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-a9sdevj
title: 16652

description: The presence of hydrated minerals and-or water on asteroids has important implications for how they comma  and the Solar System comma  formed and evolved. Techniques that unambiguously detect water on asteroids can be used to identify targets for exploration and in-situ resource utilization (ISRU) and could be used to better understand how water was delivered to Earth. Asteroid hydration is typically determined through detections of the near-infrared (NIR) 3-micron absorption feature  however comma  interpretation of this spectral feature is complicated by the need for thermal corrections to NIR data comma  telluric lines in our atmosphere comma  and the proximity of the OH (2.8 microns) and H2O (3 microns) spectral absorption features. In the far-ultraviolet (FUV) comma  however comma  water produces a strong spectral edge causing a significant difference in albedo shortward and longward of 165 nm. We propose to conduct observations of five M-type asteroids using the FUV COS G140L mode to 1) evaluate if the hydrated sub-class of the M-type asteroids are in fact hydrated or are otherwise different from the non-hydrated comma  presumably metallic M-types  and 2) determine if this hydration is due to OH or H2O comma  since only H2O is expected to produce the strong FUV spectral signature. Only three asteroids have ever been observed at wavelengths <180 nm comma  so this proposed program would significantly increase the database of FUV asteroid observations while also verifying if the FUV can be used to unambiguously detect water or water-bearing minerals on asteroid surfaces.
DOI: 10.15156/bio/sh1283993.09fu
title: SH1283993.09FU

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-aas5ea5
title: 16672

description: Extremely metal-deficient (XMD) comma  compact and low-mass star-forming galaxies (SFGs) at low redshifts are considered to be the likely nearby counterparts of the high-z star-forming dwarf galaxies thought to be responsible for the reionization of the Universe. We propose to observe with the HST-COS a complete sample of the nine most metal-deficient (12+logO-H<7.25) compact SFGs known in the local universe comma  to obtain medium-resolution spectra of the Ly-alpha emission line. Only one galaxy with such  a low metallicity comma  I Zw 18 comma  has been studied previously with the HST-COS. These SFGs were selected from the Data Release 16 and earlier releases of the Sloan Digital Sky Survey to be not only XMD comma  but also to be very compact and to have very young starbursts (EW(Hbeta)>100A). Among them one galaxy comma  J0811+4730 with 12+logO-H = 6.98 comma  is one of the lowest-metallicity low-z SFG known to date. The Ly-alpha profiles in those medium resolution spectra will be used to indirectly estimate the escape fraction of the Lyman continuum and will provide important insight on the ISM and radiation field of the star-forming regions. Obtaining the rest-UV spectra of these nine XMD SFGs which will serve as templates for the analysis of spectra of high-z dwarf galaxies with active star formation comma  is thus both urgent and crucial for upcoming studies with the JWST and the largest ground-based facilities.
DOI: 10.15156/bio/sh1283994.09fu
title: SH1283994.09FU

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-afd7f2m
title: 16654

description: Black hole (BH) demographics in binaries is critical in view of recent results on massive stars binarity comma  and the proven multi-messenger detectability of compact objects mergers.  Close systems are relatively simple to identify and study as the black hole accretes mass from an evolving companion comma  and develops an X-ray emitting accretion disk. However comma  identification and characterization of non-interacting BHs is elusive comma  but may represent a significant unstudied population.   2MASS-J05215658+4359220 is the only candidate binary presumed to harbour a non-interacting stellar-mass black holedoublePoint it consists of a red giant and an optically undetected comma  compact companion of about 3.3 solar masses. In the scenarios proposed so far comma  based on a broad ensemble of data comma  the origin of near-UV flux detected by GALEX and Swift  remains unexplained and may be the key to understanding the system.   We propose STIS UV spectroscopy and WFC3 multi-band imaging (including UV) comma  that uniquely will reveal the origin of the NUV flux comma  and hence provide a decisive clue to the nature of the system. Compatible scenarios include  the presence of a white dwarf (WD) or tight WD pair or a low-mass stellar close pair orbiting the red-giant primary at a larger separation comma  an accretion disk comma   or chromospheric-TZ line emission from the red giant. The HST UV data will uniquely allow us to conclusively discern the source of the UV emission comma  to detect a stellar companion (or pair) or accretion disk if present comma  derive physical parameters comma   characterize the entire system also refining the red-giant parameters comma  and to conclusively address the BH companion scenario postulated in recent literature.
DOI: 10.57780/esa-ak5f2pf
title: 16872

description: The Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey (CANDELS) was designed to document the first third of galactic evolution from z = 8 to 1.5 via deep imaging of more than 250 comma 000 galaxies with WFC3-IR and ACS.  It also discovered the first Type Ia SNe beyond z > 1.5 and established their accuracy as standard candles for cosmology.  Five premier multi-wavelength sky regions were selected from the Spitzer Extragalactic Deep Survey (SEDS) to provide complementary IRAC imaging data down to 26.5 AB mag comma  a unique resource for stellar masses at all redshifts.  The use of five widely separated fields mitigated cosmic variance and yielded statistically robust and complete samples of galaxies down to 10elev9 solar masses out to z virgul 8.  The original CANDELS ACS imaging included primarily V- and I-band  (F606W and F814W) comma  with no B-band observations.  The two CANDELS-Deep fields already had moderately deep F435W imagery taken as part of the  GOODS North and South programs (GO 9583 and 9425).  None of the three  CANDELS-Wide fields had pre-existing F435W coverage.  The subsequent  GO program UVCANDELS (GO 15647) obtained comparably deep F435W  imagery across much of the CANDELS-EGS and CANDELS-COSMOS fields comma   but did not target the CANDELS-UDS field.   This program aims to rectify the missing B-band HST imagery in the  CANDELS-UDS comma  the only CANDELS field still lacking F435W.  The 44 single-orbit visits of compact-dithered F435W pointings are identically  matched to the legacy ACS-WFC CANDELS-UDS footprint comma  resulting in  a consistent HST legacy dataset of BVI imaging for the entire CANDELS  Wide mosaic survey.
DOI: 10.15156/bio/sh1283995.09fu
title: SH1283995.09FU

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-akihu9r
title: 16706

description: The Ultraviolet (UV) transient sky is one of the next frontiers in time-domain astrophysics with several space mission concepts planned for the middle of the decade.  UV wavelengths are typically associated with hot phenomena comma  but we are focused on their use in measuring shock breakout and shock cooling from core-collapse supernovae (CCSNe) at very early times.  These extreme events correspond to the shock emerging from the surface of the progenitor.  If properly sampled comma  the UV peaks can be used to constrain properties of the progenitor stars comma  including the energy per unit mass of the SN ejecta and the stellar radius.  No previous HST UV time-domain survey had had the right depth and cadence to detect these events.  Here we propose a 30 orbit (Small) Narrow-field Ultraviolet Transient Survey (NUTS) with WFC3 UVIS (F275W and F336W) comma  which will represent the deepest and fastest UV time-domain survey to date.  We intend for this survey to serve as a ''pathfinder.. to lay the foundation for future missions comma  both with and without HST.  The survey will reach a depth of >26 mag AB over 73 square arcmin with a cadence of 2 days over 6 epochs out to a redshift of 1.3.  Coordinated observations with the deep comma  ground-based Subaru Hyper Supreme Cam (HSC) SN survey will allow us to pinpoint the time and location of SNe.  We expect the primary result of this survey to be the discovery of 2-3 shock cooling events comma  approximately doubling the sample of existing events.  The survey will also provide significant ancillary UV transient science comma  including but not limited to SN shock interaction comma  Type Ia non-degenerate companions comma  and tidal disruption events.
DOI: 10.15156/bio/sh1283996.09fu
title: SH1283996.09FU

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-an91hmv
title: 17225

description: While dust constitutes a small fraction of a galaxy.s interstellar medium comma  it has an outsized impact on its spectral energy distribution (SED) by reddening and attenuating the light from stars. The effects of dust are degenerate with those of the galaxy.s star formation history comma  because stellar populations of different ages can be subject to different levels of attenuation in the presence of patchy dust. We propose to separate the variations of the ultraviolet-to-nearIR (UV-to-NIR) dust attenuation from those of the star formation history in star-forming galaxies comma  by leveraging the multi-wavelength and high resolution capabilities of HST. We will complement archival HST data with new ACS and WFC3 broad and narrow-band imaging to probe the SEDs of the stars and the hydrogen recombination lines of H-alpha and Pa-beta to model the spatially-resolved stellar populations comma  gas emission comma  and dust in five nearby galaxies hosting central starbursts. The five starbursts are selected based on their global far-infrared and UV emission properties comma  which deviate from those of typical starbursts in the local Universe comma  making them puzzling outliers. FUV (1600 Angstrom) to NIR (virgul1.6 micron) SEDs of individual star clusters and HII regions will provide necessary constraints to separate variations of stellar ages in patchy dust from variations of the shape and normalization of the dust attenuation curve. Our study will provide a benchmark for dust attenuation corrections directly applied to UV-to-NIR SEDs. This will remain the only viable option to derive physical parameters for the large high-redshift galaxy surveys produced by the JWST comma  Roman comma  Euclid comma  and ELTs.
DOI: 10.57780/esa-anfs5ks
title: 16300

description: Our understanding of how gas is converted into stars on small spatial scales within z > 0.1 main-sequence galaxies has been hindered by a dearth of high-resolution imaging of the molecular gas component. However comma  a new window into spatially-resolved molecular gas has recently opened through ALMA observations of high-redshift galaxy clusters. These gains have been largely due to the high source density of star forming galaxies in young clusters comma  which allows for efficient multiplexing. The ALMA observations have yielded exquisite velocity maps and morphological analyses for the first large sample of spatially-resolved molecular gas in high-redshift galaxies.  By combining these novel ALMA data with rest-frame UV imaging using ACS-WFC F475W and F625W comma  we will investigate the interplay between gas comma  star formation comma  and stellar mass on kiloparsec scales comma  for virgul30 main-sequence cluster galaxies at zvirgul1.6. This will be the first determination of the spatially-resolved Kennicutt-Schmidt law for a large sample of galaxies at high redshift comma  and will be a pioneering study of how gas is consumed by star formation on sub-galactic scales near the peak of cosmic star formation.