cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-qu3ruj3
title: 16817

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over virgul150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul40 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.15156/bio/sh1284225.09fu
title: SH1284225.09FU

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-qub95l2
title: 16491

description: This program is designed to search for the best focus for the G130M-1222 and G160M-1600 settings at 7d_comma comma  9d_comma comma  11d_comma on the FUV detector as an exploratory program for Lifetime Position 6 (LP6). The focus sweeps are designed to determine the best focus position to within 100 steps comma  and will scan at 200 focus step increments from -1000 to +1000 relative to the predicted best focuses of -350 comma  50 comma  and 550 and 650 comma  1100 comma  1600 for the G130M-1222 and G160M-1600 settings comma  respectively comma  which were determined by extrapolation from adjacent focuses. This strategy is based on several earlier programs (LENA2 program at LP3 - ID 13635  LP4 focus sweep exploratory program - ID 14527  New COS-FUV cenwave focus sweep program - ID 15451) comma  which all executed successfully. We will adjust the focus in steps of 200 as is typical for focus sweeps.   The target for this program is Feige 48 comma  as in previous G130M focus sweeps such as PIDs 14527 and 14874. The exposure times at each step are defined to provide spectra with S-N > 30 in the G130M observations.
DOI: 10.57780/esa-qv1ccbt
title: 16906

description: This program obtains observations of two spectrophotometric white dwarf standard stars (WD0308-565 and GD71) at all COS2025-compliant cenwaves and FP-POS at LP6 for G160M modes. The data will be used to determine the 2D cross-dispersion spectral profiles and traces required to perform two-zone extraction comma  as well as the sensitivities and flat-fields for accurate flux calibration. Additionally comma  the data will be used to determine the spatial resolution of the detectors. WD0308-565 is the primary target for this program due to its status as a flux standard and TDS target. GD71 is used to more efficiently calibrate Segment A.  The main requirement for this program is to achieve S-N of about 50 per resel comma  which is driven by the requirement for obtaining profiles that are sufficiently accurate that the contours can be located such that the enclosed flux errors are less than 1%. This program ties in with the FUV spectroscopic sensitivity monitoring program (PID 16830) during which near-contemporaneous observations at the new LP will be obtained to monitor any rapid evolution in the gain.
DOI: 10.15156/bio/sh1284226.09fu
title: SH1284226.09FU

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-qytg7be
title: 17018

description: This program will observe GD-153 comma  GD-71 and GRW+70 to verify the flux calibration near the center of the field (-20 comma  0) and a few other positions using the WFC3 IR G102 and G141 grisms.  These calibrations will be compared with those derived from previous programsdoublePoint 16583 (GD-153 comma  GD-71 comma  GRW+70) comma  16408 (GD-153 comma  GD-71 comma  GRW+70) comma  15728 (GD-153) comma  15587 (GD-153) comma  14994 (GD-153) comma  14544 (GD-153) comma  14386 (GD-153) comma  14024 (GD-71) comma  13579 (GD-153) comma  13092 (GD-153) comma  12702 (GD-71) comma  12357 (GD-71) comma  11937 (GD-71) to check for any time evolution. The data will also be used to calculate wavelength solutions for the grisms and to check for time dependent sensitivity evolution of the G102 and G141 observing modes.
DOI: 10.15156/bio/sh1284227.09fu
title: SH1284227.09FU

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-r0qc5vi
title: 16576

description: The WFC3-IR detector exhibits a non-linear response to incident flux. The data reduction pipeline provides a correction for the non-linearity comma  which depends on accurate characterization of the response of the detector. To monitor the non-linearity of the WFC3-IR detector comma  we use a dark observation followed by two internal flats using the Tungsten lamp at different sampling rates comma  and a trailing dark. Any changes measured in the non-linearity will be updated in the calibration reference file comma  crucial to providing a correction for accurate photometry. This program is a continuation of the cycle 28 (program 16404) linearity calibration program.
DOI: 10.15156/bio/sh1284228.09fu
title: SH1284228.09FU

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-r0r4y7k
title: 17129

description: The extremly metal-poor star forming galaxy IZw18 is a key laboratory for galactic and stellar evolution studies. Deep HST V- and I-band imaging has revealed an underlying population comma  and determined its distance through observations of cepheids and the tip of the red giant branch.  It will soon be targeted by JWST-NIRCAM and MIRI to provide a complete census of evolved red stars and young stellar objects. However comma  deep imaging in the blue and ultraviolet  which is where the young massive stars are the brightest and are best studied is lacking comma  which we here propose to remedy. By deep far UV to blue imaging in 4 filters a census of the hot star population in IZw18  and the extinction law at very low metallicity would be obtained. With the exquisite spatial resolution of HST and using the HeII 4686 narrow-band filter comma  we can comma  for the first time comma  identify what sources are responsible for the HeII emission including Wolf-Rayet stars comma  but also hard ionizing sources comma  such as rapid rotators comma  binary stripped stars comma  or accreting compact objects comma  and  provide constraints on stellar evolutionary theories at low  metallicity. The observations would also allow a much improved determination of the recent star formation history comma  and a chararacterisation of the luminous red stars that JWST will see.
DOI: 10.57780/esa-r11gim9
title: 16331

description: The COS Target Acquisition (TA) monitor is divided into two pieces comma  NUV and FUV. This program is the NUV portion. Visits BA and  BB of this program verify all ACQ-IMAGE mode co-alignments by bootstrapping from PSA+MIRRORA.  The assumption comma  which should be tested at some point comma  is that the PSA+MIRRORA WCA-to-PSA FSW offsets are still as accurate in defining the center of the PSA relative to the WCA as there were in SMOV. The details of the observations are given is the observing section.  Visit PB obtains the PSA-MIRRORA to PSA-MIRRORB ACQ-IMAGE alignment.   Visit BA takes back-to-back PSA-MIRRORB  and  BOA-MIRRORA ACQ-IMAGEs and images (with flashes) and also takes G230L comma  G285M as well as FUV LP3 G130M and G140L spectra to test the WCA-to-PSA offsets.  Visit BB takes back-to-back BOA-MIRRORA  and  BOA-MIRRORB ACQ-IMAGEs and images (with flashes) and also takes G225M comma  G185M comma  and FUV LP3 G160M spectra to test the WCA-to-PSA offsets.   In all visits comma  lamp+target images are taken before and after the TA imaging mode that is being co-aligned (the second ACQ-IMAGE of the program.)
DOI: 10.15156/bio/sh1284229.09fu
title: SH1284229.09FU

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-r11uto2
title: 16668

description: Three strongly magnified individual stars have been discovered in zvirgul1 galaxies thanks to temporary boosts from microlensing. All were discovered as transient events that have since faded. Now a more persistent and distant lensed star has been discovered at zvirgul6 comma  named d_commaEarendeld_comma (d_commamorning lightd_comma). Its extremely high magnification has persisted for 3.5 years between HST observations comma  consistent with microlensing simulations of this object. But HST monitoring of the zvirgul1 stars revealed things weren.t always as they seemed.  Here we propose the first repeat monitoring of Earendel in the same WFC3-IR filter comma  with 4 more epochs F110W imaging. These data will yield Earendel.s baseline flux to better constrain its magnification comma  and thus luminosity and mass.  Current HST data suggest it is likely very massive > 50 M_sun. And at zvirgul6 comma  it is likely low metallicity < 0.2 Z_sun. Very massive low metallicity stars are extremely rare in the local group and thus hard to study locally. Such stars are the likely progenitors of virgul30 M_sun black holes measured by LIGO gravitational wave detections. But models of their evolutionary tracks are highly uncertain. Remarkably comma  this isolated zvirgul6 star may offer the best opportunity to pinpoint the giant branch of a low metallicity massive star. Approved JWST GO observations will constrain the star.s temperature comma  putting a zvirgul6 star on the H-R diagram with a luminosity (and mass) precision significantly improved by this HST proposal.  To support the various communities interested in these results comma  we waive any proprietary period to the data comma  in the same spirit as the previous HST observations and approved JWST observations of this exciting target.
DOI: 10.15156/bio/sh1284230.09fu
title: SH1284230.09FU

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-r4hdgrw
title: 16705

description: There is growing evidence that our understanding of accretion onto supermassive black holes during the quasar phase is incomplete comma  and that accretion disks (ADs) are larger than theoretically predicted. This has far reaching implications for accretion physics in the general astrophysical context. It further influences our understanding of the growth of supermassive black holes via accretion and mergers over cosmic times comma  their immediate active environs comma  and the potential of using quasars as standard cosmological candles. Reverberation mapping (RM) has been proven successful in studying quasar interiors comma  which cannot be resolved by conventional imaging techniques. Nevertheless comma  RM inferred AD sizes are controversial comma  and may be affected by non-AD emission components comma  such as the broad line region (BLR). Here we propose a high-cadence spectroscopic-RM campaign of Mrk279 using STIS. Data will be used to constrain moments of the transfer function (between the driving continuum signal and its echo) in addition to the lag comma  thereby breaking the degeneracy between competing models for the origin of continuum time-delays in the UV-to-NIR spectral range. RM of the broad emission line signal will also be pursued to constrain physical models for the BLR and test claims for a tight connection between the BLR and the AD. The proposed observations are extemely timely as HST-STIS is the only operating telescope that meets our scientific requirements comma  and could shed light on the theoretical uncertainties that are currently plaguing the field.
DOI: 10.57780/esa-r4ik7yk
title: 16901

description: We propose joint XMM-Newton and HST observations of the nearby young G- type star HIP 67522 Tau comma  hosting a close-in Jupiter- size transiting exoplanet discovered with TESS comma  and possibly a second smaller body. The first confirmed planet in this young system is expected to be in a contraction phase toward its final size and possible photoevaporation. Our immediate objective is to reconstruct the full XUV spectrum comma  and to assess the spectral and time variability of the host star. In this way we will characterize its activity level and the dose of high-energy irradiation in the planetary environment. This system is particularly compelling to investigate evolutionary paths of exo- planets in the mass-radius diagram comma  and to provide constraints for planetary atmospheres modeling.
DOI: 10.15156/bio/sh1284231.09fu
title: SH1284231.09FU

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-r7y4vib
title: 16113

description: The Space Telescope Science Institute (STScI) Director has decided to devote up to 1000 orbits of Director.s Discretionary time in observing Cycles 27-29 to a new Hubble Ultraviolet Legacy program focused on star formation and associated stellar physics. This new program comma  ULLYSES (UV Legacy Library of Young Stars as Essential Standards) comma  will provide a UV spectroscopic reference sample of young (< 10 Myr) high- and low-mass stars. It will target over virgul150 OB stars in the Magellanic Clouds and lower metallicity galaxies in the Local Group comma  and virgul40 T Tauri stars and brown dwarfs in the Milky Way. In addition comma  ULLYSES will monitor 4 typical T Tauri stars over different rotational phases through at least three rotation periods comma  and over timescales of months to years. The resulting library will provide template spectra of massive stars at metallicities substantially below the well studied comma  while the low mass sample will cover a wide range of ages comma  accretion rates comma  and masses comma  including objects down to well below 0.5 M_sun. The legacy of this large UV dataset on the first 10 Myr of stellar evolution will be enhanced by complementary datasets obtained by the scientific community. In addition to the core goals of the program related to stellar astrophysics of low and high mass stars comma  this data will also enable exciting science in the fields of ISM comma  CGM comma  jets comma  and exoplanets. ULLYSES will be modeled after the Frontier Fields programdoublePoint all data obtained will be non-proprietary. The implementation team at STScI is developing high-level science data products and a sophisticated database and website for disseminating data from the ULLYSES program and ancillary datasets for the ULLYSES target sample from space and ground-based facilities.
DOI: 10.15156/bio/sh1284232.09fu
title: SH1284232.09FU

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.