cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1284200.09fu
title: SH1284200.09FU

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/sh1284201.09fu
title: SH1284201.09FU

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-p6c0xaj
title: 16886

description: C-2014 UN271 (Bernardinelli-Bernstein) is a recently discovered long-period comet that was observed at unprecedentedly large inbound distances from the Sun (virgul29 au). Here we seek one HST mid-cycle orbit using the WFC3 camera to observe the remarkable comet at heliocentric distance virgul20 au. Our primary scientific objective is to determine the nucleus size by photometrically isolating the nucleus signal from the surrounding coma. The proposed HST program will enable us to study an inbound comet at a rarely-seen distance from the Sun in good detail.
DOI: 10.15156/bio/sh1284202.09fu
title: SH1284202.09FU

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-p84nfei
title: 16681

description: Observations of the orbits of stars around the supermassive black hole at the center of our Galaxy have brought us new and exciting insights into the physics and astrophysics of supermassive black holes. These observations have not only provided the best evidence so far for the existence of supermassive black holes comma  but they have also advanced our understanding of star formation and stellar dynamics in this region. With a time baseline of over 25 years comma  we can perform ever more powerful experiments comma  the latest of which are measurements of the effect of General Relativity on the orbit of the star S0-2-S2. As astrometry becomes more precise comma  the discovery of our Galaxy.s dark cusp of compact objects is now within reach. However comma  there is a fundamental limitationdoublePoint the stability of the reference frame. We propose to observe the Galactic center with WFC3-IR in the next three cycles comma  which when combined with Gaia data will create the most accurate reference frame to date. These measurements from 2022-2024 will (1) enable the detection of a dark cusp around the black hole  (2) take advantage of the unique overlap in observations between HST comma  Gaia (ending in 2024) comma  JWST (beginning in 2022) comma  and the ground to cross-calibrate instrumental systematic uncertainties to build on the legacy of astrometry with HST  (3) use HST observations to double our yearly time baseline for monitoring the near-infrared activity of Sgr A* to determine the physical origins of its recent unprecedented increase in activity.
DOI: 10.15156/bio/sh1284203.09fu
title: SH1284203.09FU

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-pdszjsl
title: 17265

description: We use observations of a stable star with the WFC3 UVIS G280 grism in order to measure the followingdoublePoint 1) measure the UVIS shutter.s timing jitter comma   i.e. the non-repeatability of a commanded exposure time due to the vagaries of the mechanical shutter mechanism (current best estimates are 0.004s rms or 0.006s rms)  2) validate if FLASH is important for very bright stellar spectrophotometric time series with G280  and 3) test effects of shutter BLADE (A or B) for the same.
DOI: 10.57780/esa-pdumt6a
title: 17001

description: When a star is tidally disrupted by a supermassive black hole comma  the rapid accretion of the stellar debris may drive super-Eddington winds which.  After a period of accretion rate decay comma  we expect the winds to d_commashut offd_comma comma  drastically reducing the production of broad line emission and changing the evolution of the band-specific light curve across the spectrum.  Spectroscopic monitoring of new tidal disruption events (TDEs) in the ultraviolet is the best place to observe this transition due to the persistence of a windless disk continuum. the lack of stellar contamination comma  and the wealth of high-ionization diagnostic lines that probe the relatively small TDE accretion structure.  We propose to observe 5 TDEs over 3 epochs with monitoring UV spectroscopy and complementary X-ray and optical observations comma  in order to observe this transition and investigate its connection to the evolution of the accretion flow.  Beyond this primary goal comma  these observations will also provide an important legacy contribution of HST towards understanding TDE physics in the UV.
DOI: 10.15156/bio/sh1284204.09fu
title: SH1284204.09FU

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-pft8dbj
title: 16810

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-pipylco
title: 16887

description: Close dual quasars are expected to be common in the hierarchical universe. However comma  very few confirmed dual quasars are known at <5 kpc at 1<z<3 comma  in stark contrast to naive theoretical expectations. We propose STIS (G750L) slit spectroscopy to systematically discover close (<5 kpc) dual or strong gravitationally lensed quasars at redshifts 1<z<3. Our sample probes a new regime at higher redshifts comma  higher luminosities comma  and smaller merger separations than previous work. This poorly explored regime is crucial for understanding the effects of mergers in triggering quasar activity at cosmic noon. Our targets are selected using a new astrometric techniquedoublePoint when two close-by AGN vary stochastically comma  their combined light centroid shifts comma  which is detectable by Gaia. Follow-up dual-band HST imaging of Gaia-selected targets has recently uncovered multiple-cored morphology with small angular separations of virgul0.4d_comma-0.6d_comma comma  subsequent to the most recent proposal deadline. The proposed STIS spectroscopy will unambiguously identify the targets as high-redshift close dual or lensed quasars and reject interlopers from chance superpositions with foreground stars-quasars. It will demonstrate the new astrometry technique and identify suitable targets for detailed JWST IFU follow ups. The program will provide a systematic pilot effort to fill the gap in our knowledge about the demographics of dual supermassive black holes on <5 kpc scales at cosmic noon.
DOI: 10.57780/esa-pj0arpu
title: 16536

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 28 comma  Proposal 16328.
DOI: 10.15156/bio/sh1284205.09fu
title: SH1284205.09FU

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-pldgoxl
title: 16425

description: We propose observation of SPT-CL J0356-5337 comma  a bullet-like cluster candidate at zvirgul1 comma  in order to identify the multiple centers of X-Ray emission from the ICM. The configuration of this cluster shows two massive components at the cluster core comma  separated by 172kpc. One component is dominated by the BCG comma  whereas the other hosts a group of eight galaxies within 60kpc. Merger events happen on short timescales relative to the lifetime of the cluster  therefore only a handful of clusters have been observed yet comma  mainly at lower z. Combined with HST data we can constrain both the hot gas and the dark matter potential using strong and weak lensing. Studying such rare high redshift cluster brings more insight into our distant universe in preparation for future X-ray observatories.
DOI: 10.15156/bio/sh1284206.09fu
title: SH1284206.09FU

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-poxhsi0
title: 16532

description: This program will be used to create the yearly post-flash calibration reference image. It contains 6 exposure pairs with a post-flash level of 4774 and 63 electrons at a fixed DARKTIME (EXPTIME + FLASHDUR + COMMANDING).
DOI: 10.15156/bio/sh1284207.09fu
title: SH1284207.09FU

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-pq4ojzg
title: 16697

description: The C-O abundance ratio is a powerful probe of galaxy evolution comma  sensitive to gas outflows and star formation histories because carbon and oxygen enrichment occurs on different timescales. C-O has been derived for many low- and high-redshift galaxies using measurements of rest-UV OIIICORCHETE_CLOSE and CIIICORCHETE_CLOSE collisionally excited lines (CELs). However comma  C-O derived from UV CELs may be subject to an V1.0 and potentially large bias. It is well established that O-H determined from CELs systematically underestimates O-H based on O recombination lines (RLs  the most robust abundance determination) by a factor of virgul2 comma  known as the Abundance Discrepancy Factor (ADF). It is currently V1.0 whether C abundances display a similar ADF between CEL and RL methods. Consequently comma  we do not know whether C-O derived from UV CELs matches the true C-O value based on RLs comma  or is systematically biased. The primary obstacle is a lack of overlap between samples with measurements of ultra-faint optical RLs and UV CELs. We propose to measure UV OIIICORCHETE_CLOSE and CIIICORCHETE_CLOSE CELs in 9 HII regions with existing measurements of OII and CII RLs comma  leveraging the unique capabilities of HST-COS. These observations will crucially allow us to derive C-O and C-H from both CELs and RLs for the same objects comma  enabling a robust calibration of the C-O abundance scale from UV CELs and an understanding of the ADF of C. Securing UV spectroscopy with COS is the only feasible way to validate UV-based C-O comma  of critical importance to understanding rest-UV line measurements in local dwarf galaxies comma  galaxies at cosmic noon comma  and sources in the epoch of reionization with JWST in the near-future.
DOI: 10.15156/bio/sh1284208.09fu
title: SH1284208.09FU

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-pq937ma
title: 16645

description: Streams of gas in cosmological halos are critical to galaxy evolution comma  as they bring matter into halos (accretion) and carry matter out (outflows). In addition comma  d_commaintergalactic transferd_comma from satellites and group members can be important for building up the gas mass of galaxies. We have discovered a giant (>100 kpc) CORCHETE_OPENO IICORCHETE_CLOSE-emitting nebula in the group environment of a zvirgul0.5 QSO. The filament is devoid of starlight comma  showing instead knots of nebular emission in HST-ACS imaging  it is coincident in redshift with a partial Lyman-limit system having 1-20 solar metallicity in HST-COS spectroscopy. The filament may be an example of intragroup gas commonly identified via HI-selected absorption studies comma  representing either material stripped or shed from group members or accreting with new infall. We propose an ACS-SBC imaging campaign to study the spatial distribution and intensity of O VI and Ly-alpha emission from this filament comma  constructing a synthetic narrow band filter through difference imaging in two ACS longpass filters. Our proposed observations will allow us for the first time to understand how the warm-hot and cool phases of circumgalactic gas are related comma  provide a robust measure of the cooling rate of hot material in a gaseous halo comma  and give unique density and mass estimates in a filament. This filament is one of the few opportunities we have to image intergalactic gas prior to the next generation of UV telescopes and will be the only case for which we have both absorption and emission line data for the same species.
DOI: 10.57780/esa-psclx3q
title: 17071

description: Despite several decades of UV observations comma  the rest-frame ionizing spectrum of QSOs remains uncertain comma  primarily because of insufficient wavelength coverage to identify strong absorbers and measure spectral curvature between the EUV-FUV and NUV-Optical. The primary goal of this proposal is to define the continuum of QSOs comma  for ionizing (Lyman continuum) wavelengths through the NUV and optical. This requires d_commafilling the NUV gapd_comma for intermediate-redshift AGN (z = 1.5-2.2) with existing COS-G140L (FUV)  and optical (SDSS) spectra. To fit the continuum over a broad wavelength interval comma  with access to windows of line-free continuum comma  we need spectra (2000-3500A) that connect FUV and optical wavelengths.  This region contains important absorption-line diagnostics comma  including higher Lyman lines associated with LLS and pLLS absorbers.   We request 26 orbits to obtain COS-G230L near-UV spectra of 12 AGN at redshifts z = 1.51-2.12 with existing far-UV (COS-G140L) and optical spectra (SDSS-6dF). This will extend the AGN composite spectrum down to 360-420A and investigate possible spectral hardening at wavelengths below 600A.  We will also derive limits on EUV turn-overs and the He I continuum edge (504A) predicted in some models of accretion disks.  Our spectra will also measure higher Lyman lines associated with strong (LLS-pLLS)  absorbers and prominent QSO broad emission lines in the EUV that contaminate the underlying continuum.