cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-39x4tf6
title: 15970

description: We propose ultraviolet (UV) imaging to construct spectral energy distributions (SEDs) for a sample of active galactic nuclei (AGN) at redshifts from virgul0.3 to virgul1.0 that have reverberation mapping (RM) measurements of the broad line region. We will use UV--optical SEDs to examine the origin of deviations of sources from the local radius-luminosity (R-L) relation that is used to estimate black hole masses in AGN at high redshift. Because the R-L relation depends on the amount of ionizing radiation reaching the line-emitting gas comma  we expect that the R-L relation will depend on the SED of the sources. Our proposed observations will quantify any dependence of the R-L relation on the SED of the AGN and will allow us to apply the R-L relationship to estimate black hole masses in sources spanning a wide range of redshifts and accretion properties. All black hole mass estimates in AGN across the observable universe rely on the calibration and application of the R-L relation  it is thus imperative that we understand its limitations and possible dependencies on various AGN properties. This work will be fundamental for studies of the formation and evolution of galaxies and their supermassive black holes.
DOI: 10.57780/esa-3asi7wc
title: 16892

description: We propose VLA A-config Ku- and C-band imaging to resolve the sub-arcsec double nuclei in 11 candidate dual- lensed quasars. Our targets are selected using a new astrometric technique leveraging the universal AGN variability which produces astrometric signals from dual-lensed quasars. Gaia.s precision astrometry combined with follow- up HST optical dual-band imaging provides strong candidates of dual-lensed quasars with close compact double cores. We adopt a refined target selection based on the HST optical color to better reject star-quasar superpositions compared to a pilot program. The proposed VLA dual-band imaging will detect two compact flat-spectrum radio cores to confirm our targets as dual or lensed quasars. Joint HST-IR imaging is requested to further test the lensing scenario to identify bona-fide dual quasars. Our sample probes a new regime at higher redshifts and smaller merger separations than previous work comma  where mergers are thought to be more important in driving the evolution of galaxies and supermassive black holes comma  providing empirical constraints on the stochastic gravitational wave background from binary supermassive black holes.
DOI: 10.15156/bio/sh1283892.09fu
title: SH1283892.09FU

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-3h6xse6
title: 16585

description: Internal flats are taken across all 62 UVIS filters in order to track the stability of the UVIS pixel-to-pixel sensitivity comma  the functionality of the filters comma  and the operation of the Tungsten lamp. The monitor uses both the Tungsten and Deuterium lamps comma  the former for optical and the latter for UV wavelengths. This is a continuation of the following proposalsdoublePoint  12337 (Cy 18) comma  12711 (Cy 19) comma  13097 (Cy 20) comma  13568 (Cy 21) comma  14028 (Cy 22) 14390 (Cy 23) comma  14547 (Cy 24) comma  14997 (Cy 25) comma  15590 (Cy 26) comma  15730 (Cy 27) 16410 (Cy 28)
DOI: 10.15156/bio/sh1283893.09fu
title: SH1283893.09FU

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-3hxg38i
title: 16841

description: We propose deep Chandra ACIS observations and joint HST narrow band imaging of the nearby Compton-thick AGN ESO137-G034. The recent Chandra discovery of extended kpc-scale hard X-ray continuum (3-6 keV) and Fe Ka emission in Compton-thick AGN provides physical constraints on the obscuring torus and demonstrates the impact of the supermassive black hole (SMBH) on the host galaxy via feedback. Comparing deep Chandra data with multi-wavelength high resolution data (e.g. HST comma  ALMA comma  VLT-SINFONI) comma  we will conduct an unprecedented comprehensive analysis of the extended X-ray emission comma  and the multi-phase interstellar media (i.e. cold and warm molecular gas comma  ionized gas comma  and dust) at sub-arcsec resolution to ultimately understand how the central SMBH interacts with and impacts the host galaxy.
DOI: 10.57780/esa-3iuvulz
title: 17067

description: The remarkable breadth of exoplanetary systems most likely finds its origin in their parent protoplanetary disks. Understanding the diversity of the physical properties and evolutionary pathways of these disks is therefore key to interpret the wealth of data that has been accumulated on exoplanets over the past two decades. High-angular resolution observations of disks comma  the most direct method to characterize their properties comma  is a challenging task in most cases and detailed individual studies are limited to a small set of favorable objects which are unlikely to be representative of the entire population. Edge-on protoplanetary disks offer unique advantages by blocking direct starlight and by providing an ideal perspective to study the disk vertical structure comma  which is expected to be affected by dust settling as part of the planet formation process. After a few serendipitous early discoveries comma  a method to identify likely edge-on disks was designed based on their peculiar spectral energy distribution. An HST pilot program confirmed that over half of the candidates were resolved as edge-on disks. Here we propose to conduct a complete survey of all HST-accessible edge-on disk candidates in four nearby star-forming regions (Taurus-Auriga comma  Chamaeleon comma  Lupus comma  Ophiuchus) to confirm their nature comma  and to enable a statistically meaningful ensemble analysis of the properties of protoplanetary disks. This survey is expected to roughly triple the number of edge-on disks identified through a uniform set of criteria in these regions and will allow us to empirically determine the true diversity of disk properties and to identify trends connected to disk evolution.
DOI: 10.15156/bio/sh1283894.09fu
title: SH1283894.09FU

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-3j7l9y3
title: 17099

description: A recent analysis of HST-STIS images has revealed the presence of water vapor in the atmosphere of Ganymede comma  the largest moon of Jupiter and in the entire solar system. The derivation of H2O was through emissions from oxygen comma  using the relative brightness of far-UV multiplets at 1304 A and at 1356 A. The findings constitute the first detection of sublimated H2O in the outer solar system. This atmosphere likely collapses when Ganymede is eclipsed by Jupiter since surface temperature and sublimation flux are expected to decrease considerably. Here we propose follow-up observations to confirm the detection of H2O in the atmosphere and characterize the response of the H2O component to eclipse. For this comma  we use the succesful STIS FUV spectral imaging mode to monitor and map the diagnostic 1304 A and at 1356 A emissions from before to after a virgul3-hour eclipse passage of Ganymede. During another eclipse occasion comma  we use COS and the G230L mode to measure OH aurora from dissociative excitation of H2O for the first time. This visit provides an independent confirmation of the H2O atmosphere. Ganymede is a primary target of ESA.s JUpiter Icy Moon Explorer (JUICE) and NASA.s Europa Clipper mission. An improved understanding of the moon.s neutral environment delivers important information for optimal science planning and addressing the habitability goals for these milestone missions.
DOI: 10.57780/esa-3l3fzdw
title: 16882

description: A rich system of thousands of compact stellar systems (CSSs) including globular clusters (GCs) comma  nuclear star clusters (NSCs) comma  ultra-compact dwarf galaxies (UCDs) comma  and compact elliptical galaxies (cEs) permeate the nearby (16.7 Mpc) Virgo galaxy cluster. CSSs are very useful as they are observationally easily accessible comma  and effectively trace the descendants of former diffuse systems disrupted in violent galaxy cluster environment. CSSs have interconnected (often galactic) formation histories comma  and - in a growing number of examples - have recently been found to harbor super-massive black holes (SMBHs) comma  confirming their utility in representing remnant nuclei of formerly more massive galaxies tidally stripped of their outer stellar sheaths. These discoveries imply that CSSs may represent a rich population of targets in which to search for so-called d_commaintermediated_comma-mass BHs (IMBHs) - a class whose demographics are generally V1.0. A systematic search for massive BHs in CSSs in a cluster environment has been prohibitively expensive using current ground- or space-based facilities  however comma  this opportunity has been opened up with the imminent launch of JWST comma  on which >40 hours were awarded in Cycle 1 to conduct such a search. Here we propose preparatory HST+ACS-WFC3 observations to obtain high-resolution imaging for a small number of the planned JWST targets for which archival HST imaging is not available. These images will be crucial in maximizing the scientific value of the upcoming JWST observations by enabling the construction of 3D de-projected CSS luminosity profiles comma  a necessary component for stellar dynamical modeling and meaningfully constraining central BH properties.
DOI: 10.15156/bio/sh1283895.09fu
title: SH1283895.09FU

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-3o2v0ge
title: 16440

description: This program is designed to provide a new comma  fully direct calibration of the pixel-based CTE model.  The initial calibration of the model in 2013 involved studying the trails behind warm pixels (WPs) and determining the trapping-and-release model that turned the WPs back into delta functions again.  This approach worked for bright WPs comma  but it was hard to examine the full trails behind faint WPs.  So in 2016 comma  we developed CAL-14880 to take a set of images with various post-flash levels so we could examine the survival of WPs as a function of background.  This allowed a direct calibration of the losses without reference to the electrons in the trails comma  thus decoupling the trapping and release aspects of the model.    This program (CAL-16440) is an extension of that methodology.  In addition to its extension of the direct approach to the entire range of pixel-packet size comma  the detector is virgul40% older than when CAL-14880 was taken in 2016 comma  and as such we have 40% more WPs to work with and the CTE-loss signal is 40% stronger comma  essentially allowing a factor of two more constraints on the model.
DOI: 10.57780/esa-3r9toz2
title: 16364

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/sh1283896.09fu
title: SH1283896.09FU

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/sh1283897.09fu
title: SH1283897.09FU

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/sh1283898.09fu
title: SH1283898.09FU

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/sh1283899.09fu
title: SH1283899.09FU

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/sh1283900.09fu
title: SH1283900.09FU

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/sh1283901.09fu
title: SH1283901.09FU

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.