cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-vtytz8a
title: 16483

description: We propose 162.2 hours (including overheads) of Q-band observations with the VLBA in order to explore the underlying nature of eight peculiar active galactic nuclei (AGN). These eight objects originate from a sample of 88 SDSS quasars identified as having broad emission lines that are velocity-offset (>1000virgulkm-s) from the host galaxy (Eracleous et al. comma  2012) comma  potentially indicating a binary supermassive black hole (SMBH). However comma  there are two other leading models for such shiftsdoublePoint a recoiling post-merger SMBH comma  or a broad line region (BLR) gas outflow caused by a jet or accretion disk wind. We have previously followed up all 88 objects from Eracleous et al. (2012) with VLA X-band observations. We then followed up the brightest VLA-detected objects with VLBA X-band observations. Our proposed Q-band observations of the eight brightest objects will provide a critical 5-fold increase in angular resolution over the previous VLBA X-band observations comma  and test the binary hypothesis down to sub-pc separations in all cases. In addition comma  we request 9 orbits with the HST in order to determine the SMBH masses comma  assess the host galaxies for any evidence of recent major galaxy mergers comma  and measure the photometric centers that will allow more precise determination of radio-optical offsets.
DOI: 10.15156/bio/sh1284286.09fu
title: SH1284286.09FU

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-vuonoyf
title: 16292

description: The observed rest-frame ultraviolet luminosity function (UV LF) of star-forming galaxies at z > 6 suggests that numerous low mass galaxies were responsible for reionizing the Universe by zvirgul6. In the current reionization models comma  however comma  the required escape fraction of ionizing photons (fesc) significantly depends on the faint-end limiting magnitude of the UV LF. Unfortunately comma  there are no observational constraints on fesc in this UV-faint regime  all galaxies with fesc measurements are brighter than Muv = -16. Thus comma  constraining fesc for galaxies around the fiducial limiting magnitude (Muv = -13) are crucial to understand the role of faint galaxies in cosmic reionization comma  but they are too faint to be observed at z > 7 even with JWST.  We propose to obtain multi-wavelength HST imaging of two nearby comma  metal-poor starburst dwarf galaxies (UGC 8091 and UGCA 292) that are fainter than Muv = -13. With these observations comma  we willdoublePoint (1) measure the global escape fraction for galaxies below the limiting magnitude for the first time using their resolved stars  (2) map the local escape fraction in each galaxy  and (3) explore the relation between local escape fraction and physical environments. Establishing the relationships between local escape fraction and physical properties will greatly improve our understanding on the mechanisms for escape of ionizing photons. Furthermore comma  those relationships can be used to infer the escape fractions of high-z galaxies that can not be resolved comma  but with measured physical galactic properties. As a pilot program comma  we will pave the way to probe the contribution of extreme UV-faint dwarf galaxies to cosmic reionization.
DOI: 10.15156/bio/sh1284287.09fu
title: SH1284287.09FU

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-vxlqi5m
title: 16968

description: Every year comma  beginning with the SMOV comma  ACS-WFC has obtained multiband imaging of a moderately crowded stellar field in the globular cluster 47 Tuc (about 6. west of the core). Measured stellar positions and magnitudes are used to monitor local- and large-scale variations in the plate scale and the sensitivity of the detectors. Single exposures in each WFC subarray mode (512 comma  1K comma  2K) allow us to verify that photometry obtained in full-frame and in subarray modes are repeatable to better than 1%.   These observations will help validate and monitor the Cycle 24 redefined ACS subarray readouts comma  which now include all pixel columns for consistent timings. Although the new 512 comma  1K comma  and 2K subarrays are defined for all 4 readout amplifiers comma  the B amplifier subarrays are the current default for subarray requests comma  and the default for the WFC polarizers. This program will obtain only B-amplifier subarray exposures.  Cycle 30 will be the fourth year of consecutive observations of Omega Centauri globular cluster with standard ACS-WFC filters (in the same way as 47 Tuc). This cluster is a WFC3-UVIS calibration target. These ACS observations will be used for comparison of L-flat and filter-dependent distortion for ACS-WFC and WFC3-UVIS.
DOI: 10.15156/bio/sh1284288.09fu
title: SH1284288.09FU

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-vznf1c7
title: 16361

description: The distribution of core radius (rc) versus chronological age for the globular clusters (GCs) in the Large Magellanic Cloud (LMC) is very peculiardoublePoint old GCs show a large spread in rc comma  while young clusters are all compact. The origin of such a distribution is largely debated and mostly interpreted in terms of an evolutionary sequencedoublePoint all GCs formed with compact cores (rc<3 pc) comma  then most of them maintained small cores comma  while several others experienced core expansion due to the heating action of binary black holes. This scenario is becoming the new paradigm of GC formation and evolution. However a new and more natural interpretation could existdoublePoint the spread in rc observed at fixed chronological age could be due to different levels of dynamical evolution (dynamical ages) comma  with large-core GCs being dynamically-younger than those with small rc. This alternative scenario can now be tested since the level of dynamical evolution reached by a star cluster can be empirically measured from the level of central segregation of its Blue Straggler Star population. Here we propose deep WFC3 observations of 3 of the most compact (rc<0.8 pc) comma  old comma  and still unexplored GCs in the LMC comma  to determine their dynamical age and definitely confirm this scenario. The scientific return of the project is hugedoublePoint in fact comma  the correct interpretation of the rc-age distribution would not only shed light on the correct paradigm for GC formation comma  but would also raise new fundamental questions concerning the processes responsible for the observed differences between the structural properties of old and young LMC GCs. Because of the legacy value of the proposed observations comma  we waive the proprietary period.
DOI: 10.57780/esa-vzzgm8x
title: 16846

description: The afterglow of some short GRBs displays a late-time rebrightening comma  visible in the near-infrared a few days after the burst. This late-time bump could be explained as kilonova emission comma  providing a direct link to neutron star mergers comma  and a compelling proof for the synthesis of heavy nuclei through the rapid neutron capture process (r-process). We propose a multi-wavelength follow-up campaign of a nearby (z<0.4) short GRB in order to detect the expected kilonova bump and constrain its properties. Multi-band observations comma  and in particular X-rays comma  are critical to pin down the nature of the observed rebrightening comma  and to distinguish it from the standard afterglow emission.
DOI: 10.15156/bio/sh1284289.09fu
title: SH1284289.09FU

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-w02sud3
title: 16878

description: The recently discovered large long-period comet C-2014 UN271 has been observed to be active as far away as virgul24 au. The cause of its activity is unclear because this is beyond the heliocentric distance at which many common cometary activity-driving volatiles significantly begin to sublimate. We comma  therefore comma  propose to use six orbits of HST time over three visits to make high-resolution color maps of the coma of C-2014 UN271 determining its coma-centric color slope testing the presence of icy grains in its coma and to constrain the ejection velocity of the dust. Revealing the presence or lack of ice grains as the comet is inbound into the inner Solar System would provide direct observational constraints on whether its activity mechanism is driven by hypervolatiles. Determining the ejection velocity of the dust will provide independent constraints on the activity mechanism. In addition to determining the color map of C-2014 UN271 comma  our observations will have legacy value for future interpretations of one of the few known large long-period comets comma  volatile content and evolution as it approaches the Solar System.
DOI: 10.15156/bio/sh1284290.09fu
title: SH1284290.09FU

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-w08snq9
title: 16188

description: This calibration proposal measures light scattered by the G230LB grating paired with the CCD detector on STIS. The improvement will have immediate impact on the fidelity of the Next Generation Spectral Library. The observational scheme is to observe three stars of differing temperature in two similar modes  CCD+G230LB and MAMA+G230L. Because the MAMA is mostly insensitive to red light comma  only the CCD spectra will show the scattered light problem. The scattered light will be modeled and applied to the NGSL.   In addition comma  the dependence of scattered light on the position of the star relative to the centerline of the slit at the time of exposure will be measured.
DOI: 10.57780/esa-w2gvjle
title: 16565

description: The UVIS detector occasionally exhibits low-level (virgul1%) quantum efficiency offsets (i.e. hysteresis) across both chips. This is known as the .bowtie. effect comma  due to the unique pattern that results in the image ratios and was revealed during thermal vacuum testing. Ground tests found that this hysteresis could be negated by overexposing the detector to several times the full well amount. In order to detect and mitigate UVIS hysteresis on orbit comma  a multi-cycle .bowtie monitoring. program was created.  Similar to past bowtie monitoring programs comma  each visit of this program acquires a set of three 3x3 binned internal tungsten flatfields.  The first image is unsaturated in order to identify hysteresis comma  the second image is saturated to neutralize any quantum efficiency offsets comma  and the third image is unsaturated to provide an estimate of how well the hysteresis was removed.
DOI: 10.15156/bio/sh1284291.09fu
title: SH1284291.09FU

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-w3vwty1
title: 15926

description: We are now in an era of exoplanet characterization. Exoplanets are being intensively studied to measure the abundances of water and other metals in their atmospheres in order to place constraints on the location of their origin within a disk. Inflated sub-Saturn-mass planets bridge the divide between super-Earths and Jupiters comma  so constraints on their atmospheric composition and metallicities are particularly important for informing planet formation models.   Here comma  we propose to perform a detailed investigation of the atmosphere of the hot and extremely inflated sub-Saturn-mass planet KELT-11b. This is one of the best planets to study thanks to its very bright host comma  low mass and surface gravity comma  and high equilibrium temperature. An HST-WFC3 G141 transmission spectrum indicates that KELT-11b has a clearly sub-solar metallicity atmosphere comma  but additional data are needed to determine just how metal-poor the atmosphere is. The proposed observations to measure KELT-11b.s transmission spectrum in the G102 band will not only lead to more precise metallicity constraints but will also reveal whether KELT-11b followed a rare planet formation pathway if the planet.s metallicity is indeed ultra-low. In addition comma  with precise atmospheric metallicity constraints for the sub-Saturn-mass KELT-11b comma  we will be able to empirically test correlations between planet mass-planet metallicity and between stellar metallicity-planet metallicity.  The proposed observations of KELT-11b will ultimately add to a comparative study with the other inflated sub-Saturns discovered to date that can be used to better inform planet formation and evolution models as well as future observations with JWST.
DOI: 10.15156/bio/sh1284292.09fu
title: SH1284292.09FU

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-w5nq7x6
title: 16235

description: A precise accounting for interstellar dust is required to interpret the energy output of galaxies. However comma  our current understanding for how fundamental properties of dust grains vary between interstellar environments is severely limited. Furthermore comma  our best constraints for how galaxies beyond the Milky Way convert the dusty ISM into stars and planets are based on coarsely-calibrated star formation histories of local systems with unconstrained line-of-sight geometries. To tackle these glaring problems comma  we propose to conduct a pure-parallel comma  multi-band imaging program with Wide Field Camera 3 (WFC3) to complement the upcoming Hubble Space Telescope (HST) Ultraviolet (UV) Legacy library of Young Stars as Essential Standards (ULLYSES) survey. ULLYSES will observe massive stars in the Large and Small Magellanic Clouds (LMC comma  SMC) and other low-metallicity local galaxies. Our multi-band program comma  Scylla (named after the multi-headed comma  monstrous foe of Ulysses) comma  will target random parallel fields of ULLYSES targets with WFC3 in photometric bands spanning the UV to the near infrared (NIR). We willdoublePoint (1) map the extinction curve and dust grain properties at high resolution in a diverse range of interstellar conditions  (2) constrain the multi-dimensional structure of gas in the LMC and SMC  and (3) measure the comprehensive star formation and chemical enrichment histories of nearby dwarf galaxies. The result will be an unprecedented view of star formation in the dusty ISM.
DOI: 10.57780/esa-wadugf6
title: 16909

description: This program obtains COS FUV PtNe lamp template data at LP6 for the wavelength calibration of LP6 data. Dispersion coefficients vary with absolute focus position comma  which is different for different lifetime positions. Because lamp template reference files in use at other lifetime positions (LP1 comma  LP3 comma  LP4 comma  LP5) have different disperson solutions than what will be observed at LP6 comma  we must create new lamp template reference files using PtNe spectra observed at the LP6 WCA location using LP6 focus values.
DOI: 10.15156/bio/sh1284293.09fu
title: SH1284293.09FU

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.