cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1284042.09fu
title: SH1284042.09FU

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-dgdvkvo
title: 16970

description: This program comprises basic tests for measuring the read noise and dark current of the ACS WFC and for tracking the growth of hot pixels. The recorded frames are used to create bias and dark reference images for science data reduction and calibration. This program will be executed on Monday comma  Wednesday comma  and Friday of each week. To facilitate scheduling comma  this program is split into three proposals. This proposal covers 204 internal orbits (4 orbits-day x 51 days) from 31 Oct 2022 to 24 Feb 2023.
DOI: 10.57780/esa-dgq9dqc
title: 16107

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: 10.15156/bio/sh1284043.09fu
title: SH1284043.09FU

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-dh4953d
title: 16264

description: By measuring the time delay between any pair of gravitationally lensed images comma  we can constrain the expansion rate of the universe and test dark energy models. Variable quasars have been used in this way with great success comma  and it is now possible to extend this technique to gravitationally lensed supernovae (SNe). These targets are especially promising because their predictable light curves can deliver precise time delay measurements in a relatively short period. Existing surveys have a realistic chance of discovering at least one new lensed SN within the next 1-3 years. This long-term target of opportunity program will provide the high-resolution follow-up imaging that is critical for measuring a lensed SN time delay. This program will enable a time delay measurement with uncertainty of approximately +-3 days comma  leading to a new measurement of H0 with a precision of 5-10% for a flat LambdaCDM cosmology---comparable to the best constraints achieved with lensed quasars. Future wide-field surveys (e.g. comma  LSST comma  WFIRST) could deliver hundreds of lensed SN time delays comma  but the sample size will be limited by follow-up resources. This pilot study is an important step to establish lensed SNe as a competitive cosmological tool in the coming wide-field survey era.
DOI: 10.57780/esa-dj5xki9
title: 16182

description: We request 17  orbits to secure for the first time an UV spectrum of a generic ultraluminous X-ray source (ULX). Consisting of an accreting compact object comma  a neutron star or a black hole comma   and a non-degenerate donor star comma  ULXs have highest X-ray luminosities among  all types of X-ray binaries. These ultra-high luminosities can be achieved either  (1) because of  an unusual supercritical regime of accretion comma  or-and  (2) because the black holes have  masses exceeding a few tens solar comma  i.e. comma  in the upper range among  those detected by gravitational wave observatories. Advances in X-ray astronomy have already proven that  supercritically accreting systems indeed exist among the ULX population. Herewith comma  we request UV spectroscopy to probe  the second scenario and establish the existence of ULXs consisting of heavy black holes in a close orbit around a very massive star.    ULXs have a broad spectral energy distribution comma  from X-rays to UV to optical. They are  well studied in X-rays comma  while optical spectra  are secured for about ten ULXs.  However comma  no UV spectrum of an ULX exists yet. We propose to close this gap by obtaining a high-quality UV spectrum of  the bona fide ULX comma  Ho II X-1. Our target is the closest among the generic group of those  ULXs which show   Wolf-Rayet spectra in the optical. The COS spectra  will test whether we observe the donor star or  the  accretion disk wind. Securing the first UV spectrum of a typical ULX is also necessary to gauge the models of the Universe  re-ionization  which incorporate ULXs as important feedback agents.  The UV spectroscopy of an ULX is  a necessary addition to the HST UV legacy.
DOI: 10.15156/bio/sh1284044.09fu
title: SH1284044.09FU

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-dmys55r
title: 16679

description: Either the Milky Way.s ionized CGM is an outlier compared to the CGM of other L* galaxies comma  or our primary method used to measure its content - hundreds of QSO sightlines that pierce its halo - is fundamentally biased. The latter possibility cannot yet be convincingly ruled out because 95% of existing UV-bright QSO sightlines with archival high-resolution UV spectra lie at Galactic latitudes |b| > 25 degrees.  We now have a unique opportunity to address this huge low-latitude gap in UV-bright QSO lines of sight with our proposed sample of newly discovered comma  rare QSOs at |b| < 25 degrees.  We argue that a key requirement to determining the structure comma  mass comma  and dynamics of the CGM is understanding its distribution along the disk axis. For the first time comma  we will be able to use these novel Milky Way sightlines to test the latest hydrodynamical comma  cosmological simulations that suggest extended comma  ionized disk-like structures in galaxies may persist out to virgul100 kpc. Our study comma  which will combine high-resolution HST-COS G160M spectra of these new low-|b| QSOs with > 100 high-quality archival G160M QSO spectra comma  is designed to address two primary questionsdoublePoint (1) With an unbiased view of the halo comma  is the Milky Way truly an anomalyquestionMark  (2) Does the MWCGM  show evidence for an extended comma  outer comma  ionized disk morphology comma  and if so comma  what are its propertiesquestionMark Finally comma  if we find evidence for an extended disk comma  it would represent one of the largest structures on the sky ever discovered comma  covering nearly half of the sky.
DOI: 10.15156/bio/sh1284045.09fu
title: SH1284045.09FU

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-dn8edwc
title: 16533

description: Each year comma  we will check the absolute gains of the ACS-WFC readout amplifiers. The data are pairs of full-frame flats in the F435W filter taken at five different exposure times. From experience comma  the exposure times we will use correspond to signal levels of approximately 2.5k comma  5k comma  10k comma  20k comma  and 40k DN. We will measure the signal and variance in 25 regions across a 5x5 grid on a WFC amplifier and fit a linear function to the variance as a function of signal (the photon transfer curve) comma  the slope of which is proportional to the absolute gain for that amplifier.
DOI: 10.57780/esa-do2sgdm
title: 17258

description: Utilize WFC3-UVIS and ACS-WFC in parallel to observe stellar cluster members with multiple exposures over an orbit. Phase retrieval performed on the PSF in each image will be used to measure focus comma  with the ability to explore apparent coma comma  astigmatism comma  and third order spherical changes in WFC3.  The goals are to 1) monitor the optical telescope assembly focal length for the purposes of maintaining focus within science tolerances and 2) determine focus offsets between the imagers and identify any science instrument-specific focus behavior and dependencies.
DOI: 10.15156/bio/sh1284046.09fu
title: SH1284046.09FU

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-doqskiq
title: 16954

description: Monitor wavelength calibration - dispersion solutions for STIS CCD modes. Internal wavecals will be obtained for representative wavelength settings with all 6 gratings (G230LB comma  G230MB comma  G430L comma  G430M comma  G750L comma  G750M) supported for use with the CCD.  All observations will be obtained with the HITM1 lamp comma  through the 52x0.1 aperture (which maps to 2 pixels at the CCD).
DOI: 10.15156/bio/sh1284047.09fu
title: SH1284047.09FU

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-dqwjdtq
title: 16914

description: We propose WFC3-UVIS F336W comma  F438W comma  and F814W observations for 8 Luminous Infrared Galaxies (LIRGs) in the Great Observatories All-Sky LIRG Survey (GOALS) scheduled for JWST Cycle 1 (GO1) observations. With a proprietary period of 0 days for 50% of the GO1 LIRGs comma  observations taken now will provide the concurrent WFC3-UVIS imaging necessary to reliably age-date the star clusters detected in these systems. In addition to our science goals these data will be made available for use by the community immediately comma  ensuring the maximum science return for the inaugural JWST Cycle. Recent HST observations provide evidence that the rate of cluster destruction in the nuclear regions of LIRGs is higher than that in their extranuclear regions comma  and higher than that observed in normal star-forming galaxies. The combination of HST and JWST NIRSPEC and MIRI IFU observations make possible a complete inventory of the properties of star clusters in the nuclear regions. The HST filters are needed to break the age-reddening degeneracy comma  and the JWST IFU observations will detect hydrogen recombination and PAH emission associated with the most embedded nuclear clusters. We will measure key properties such as the fraction of star formation residing in clusters comma  the nuclear and extranuclear cluster destruction rates comma  and the cluster formation efficiency. No telescopes other than the combination of HST and JWST are capable of obtaining the deep comma  high-resolution data required for such a multi-wavelength study of star clusters in LIRGs.
DOI: 10.57780/esa-drgnewr
title: 16259

description: The Hubble Space Telescope has enabled us to establish a broad picture of how present day galaxies came to be. We propose to extend this legacy into unprecedented new territory - degree-scale infrared imaging and spectroscopy - that will allow us for the first time to study the physical processes that shape the behemoths of the universedoublePoint the most massive comma  highly-star-forming comma  rare galaxies up to z=3.5. Using the d_commadrift and shiftd_comma (DASH) technique comma  developed in Cycle 23 comma  we propose to survey the entire 1.7 sq. deg. COSMOS field in WFC3-H(F160W) and WFC3-G141 in order to map the build up of stellar structure via >1000 resolved H-alpha maps comma  carry out a statistically robust census of virgul450 M>10elev11 M_sun galaxies comma  identify up to 100 massive major mergers to constrain theoretical models comma  determine emission line redshifts for virgul37 comma 000 z>0.7 galaxies and provide the most accurate predictions on the bias and number density of emission line galaxies prior to Euclid and WFIRST. 3D-DASH will create a wide shallow tier in the infrared d_commawedding caked_comma of extragalactic surveys comma  increasing the area observed with infrared grism spectroscopy by almost an order of magnitude and adding HST-resolution infrared imaging to COSMOS comma  one of the most actively studied fields. This program will fill in an important gap in HST extragalactic surveys in the pre-JWST era and is unlikely to be surpassed in sensitivity comma  area and resolution until the launch of WFIRST.
DOI: 10.15156/bio/sh1284048.09fu
title: SH1284048.09FU

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-drig32x
title: 16751

description: The Vela supernova remnant (SNR) is an ideal laboratory for studying the physical processes associated with SNR evolution in a highly inhomogeneous interstellar medium (ISM). Previous UV and optical absorption-line studies have revealed the remarkable nature of the highly disturbed interstellar gas interacting with the Vela SNR. The most noteworthy features are (1) the high positive and negative velocity absorption components seen in numerous directions comma  (2) the strong absorption from excited fine-structure levels of neutral carbon detected in low and high velocity gas comma  and (3) the many different absorption components that exhibit significant ongoing temporal variations. However comma  our understanding of the cloud-shock interactions taking place in the Vela region is far from complete. Here comma  we propose the first large-scale systematic investigation of shocked gas in the Vela SNR to employ the high resolution comma  high sensitivity comma  and extensive wavelength coverage provided by HST-STIS. We will observe eight stars clustered along a ridge of high pressure gas near the western edge of the northern X-ray bright region in the Vela SNR. The high resolution and broad wavelength coverage of the STIS spectra will allow us to examine the radial velocities comma  gas densities comma  thermal pressures comma  ionization fractions comma  and dust depletions in individual clouds along each line of sight. Five of our targets have archival STIS and-or GHRS observations comma  which will allow us to determine how the physical conditions have changed over time. The result will be the most comprehensive analysis to date of spatial and temporal variations in the physical conditions of clouds shocked by the Vela SNR.
DOI: 10.15156/bio/sh1284049.09fu
title: SH1284049.09FU

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.