cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15156/bio/sh1284255.09fu
title: SH1284255.09FU

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-tcvpufg
title: 17143

description: We propose to use HST-WFC3 in slitless grism mode to spectroscopically confirm the nature of eleven dual quasar candidates with projected separation between 0.35d_comma-0.7d_comma (corresponding to a projected separation of 3-6 kpc) comma  an extremely rare population (11 out of 59 comma 025 quasars from a search area of 500 square degrees). With the exquisite wide and deep imaging from the Hyper Suprime-Cam Subaru Strategic Program comma  we have identified a population of 386 SDSS quasars as having two bright and separate components that are candidates for dual supermassive black holes comma  many of which are within the same host galaxy comma  likely the result of a major merger. For eleven candidates that have the closest separation at z>1 comma  HST is needed to spectroscopically confirm their nature and their redshift by detection of broad emission lines from both objects. The high sensitivity of HST would further help us to rule out the possibility of lensing. Any confirmed physical quasar pair from our candidates would be the first case ever confirmed that has a projected separation below 6 kpc beyond z>1. This sample will be the key to understanding the merger process and how it affects galaxy evolution and AGN activity comma  since they are at close to final coalescence stage. Furthermore comma  this program will provide remarkable laboratories for studying the fueling of dual supermassive black holes with ALMA study. Moreover comma  taken together with the wider separation dual quasars confirmed by ground-based observations comma  we will measure the dual quasar fraction and its evolution up to zvirgul3. The results will be compared with the predictions from recent hydrodynamic cosmological simulations.
DOI: 10.15156/bio/sh1284256.09fu
title: SH1284256.09FU

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-th4msen
title: 16434

description: We propose to obtain WFC3 imaging of the Luminous Blue Variable AG Car comma  and the nebula around it comma  with 3 medium or broadband filters to image the reflection nebula comma  as well as the Ha+NII narrowband filter to image the gas around AG Car.
DOI: 10.57780/esa-tk3nncd
title: 16573

description: This program is a recurring UVIS calibration monitor that will observe two stellar clusters (Omega Centauri comma  and 47 Tuc) to measure the flux loss of point sources as a function of detector row number due to degrading Charge Transfer Efficiency (CTE). Because CTE fluctuates with characteristics such as source flux and background level comma  this program is designed to take short and long exposures comma  at various commanded post-flash levels with the F502N filter. We will compare the results from these new observations with previous external CTE calibration programs and update the aperture phometry-based CTE model. Furthermore comma  ACS has an external CTE calibration program that observes NGC 104 at various post-flash levels that can also be used for direct comparison. Lastly comma  these data will be used to help monitor-improve the empirical pixel-based CTE correction (FLC-DRC).
DOI: 10.15156/bio/sh1284257.09fu
title: SH1284257.09FU

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-tk46wi0
title: 16781

description: We propose to closely follow the expected re-activation of the unusual binary main-belt comet 288P (300163) in the fall of 2021 comma  to identify the active component(s). This is a crucial parameter to understand the formation and evolution of this system which is unique among the known binary asteroids both because of its comet-like activity and because of its wide comma  eccentric and asynchronous mutual orbit in combination with similarly sized components. We request a total of 8 orbits. Seven orbits comma  distributed across one month comma  will serve to measure the brightness increase due to dust as the system re-approaches perihelion in 2021. In addition comma  we request 1 orbit in 2021 June to probe for a potential orbit instability. It is currently unclear why no other systems with similar orbital properties as 288P are known. There is a strong detection bias against such systems comma  and the binary nature of 288P was only identified because of its activity. One the other hand comma  if activity is needed to form such systems comma  they may indeed be rare. Our proposed observations will shed light on the frequency of similar systems and on the processes behind binary asteroid formation and evolution. Since the re-activation is expected for the 2021 September-October time frame comma  we request 4 orbits in Cycle 28 and 4 orbits in Cycle 29.
DOI: 10.15156/bio/sh1284258.09fu
title: SH1284258.09FU

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-tnlu17a
title: 16694

description: AM CVns are double white dwarf binaries with orbital periods virgul5-65 mins. They have been predicted to exist in large amounts in globular clusters due to stellar interactions comma  but while binaries harboring neutron stars and even black holes have been previously identified comma  no single AM CVn has ever been confirmed to reside in any Galactic globular cluster. We propose to use 8 HST orbits to obtain FUV photometry and determine the sub-hour orbital period of a recently detected comma  He-rich comma  accreting binary in the globular cluster 47 Tuc. The system has multiwavelength characteristics that match well those expected for AM CVns. The confirmation of a sub-hour period comma  as expected for AM CVns comma   has profound implications for the dynamical evolution of globular clusters and whether they might be factories of SN Ia and ultracompact binaries that emit gravitational waves.
DOI: 10.57780/esa-tobgy07
title: 16793

description: We propose to complete the near-contiguous UV-Visible imaging of the JWST NEP Time-Domain Field comma  the best field within the JWST Continuous Viewing Zones to conduct deep and wide extragalactic JWST surveys at arbitrary cadence or orientation. This recently developed comma  virgul14. diameter time-domain field near the North Ecliptic Pole (1) is devoid of sources brighter than m_AB virgul 16 mag at 2-4 micron that would deeply saturate JWST-NIRCam comma  (2) has the lowest possible zodiacal foreground comma  (3) has low Galactic foreground extinction comma  and (4) has a wealth of deep ground- and space-based ancillary data from X-ray through radio. Deep UV-Visible HST imaging to m_AB virgul 28 mag exists for the inner virgul9. diameter portion of this field.  Completing the coverage of the NEP Time-Domain Field to the same depth comma  in combination with extant data comma  allows the community todoublePoint  (1) Establish a baseline UV-Visible detection image at virgul0.07d_comma FWHM at wavelengths inaccessible to JWST comma  and map transients and moving objects in areas of 2- and 3-epoch overlap  (2) Identify rest-frame UV-bright objects at z < 6 that would contaminate JWST ultra-high-z galaxy samples  (3) Identify galaxies with steep intrinsic UV-Visible SEDs indicative of (weak)AGN comma  assess the escape of LyC photons at 2 < z < 3 comma  and place limits on that escape and IGM porosity at z < virgul3.5  and (4) Study mass assembly and evolution of all significantly resolved UV-bright galaxies at z < 6 on a .pixel-by- pixel. basis.  In order to maximize the scientific return of early-release JWST science comma  it is critical to image this field in the UV-Visible while HST is still in its prime and before commencement of JWST observations in 2022.
DOI: 10.15156/bio/sh1284259.09fu
title: SH1284259.09FU

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-tukpiqi
title: 16904

description: As was first noticed on 2022 January 2 comma  the short-period (Kuiper belt) comet 108P-Ciffreo is undergoing a fragmentation event.  In low-resolution ground-based data comma  the ejected fragments appear only as a diffuse comma  low surface brightness blob separated from the main nucleus. Given such data comma  neither photometric nor dynamical studies are possible.  We propose early-time measurements at the high angular resolution offered by HST  to characterize these embedded fragments in terms of their brightness and velocity distributions comma  with the aim being to determine the process behind the fragmentation.  Three orbits are requested to determine the sky-plane motion of the fragments so that their velocities and ejection dates can be determined. Cometary fragmentation events are both unpredictable and short-lived and comma  as a result comma  few have been studied in detail.  DDT observations are needed to obtain data while the fragment swarm is fresh and before it dissipates and fades.
DOI: 10.15156/bio/sh1284260.09fu
title: SH1284260.09FU

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-tvyf1f3
title: 16543

description: This activity measures the baseline performance and commandability of the CCD subsystem. Only primary amplifier D is used. Bias and Flat Field exposures are taken in order to measure bias level comma  read noise comma  CTE comma  and gain. Numerous bias frames are taken to permit construction of d_commasuperbiasd_comma frames in which the effects of read noise have been rendered negligible. Full frame observations are made. Bias frames are taken in subarray readouts to check the bias level for ACQ and ACQ-PEAK observations.  All exposures are internals.
DOI: 10.57780/esa-tyeod5d
title: 16217

description: Double white dwarf binaries (aka AM CVns) are systems with orbital periods virgul5-65 mins. Because of their short orbits comma  they are important sources of low-frequency gravitational waves. They are also candidates for progenitors of SN Ia through the double degenerate path. In globular clusters (GCs) they are predicted to exist in large amounts due to stellar interactions. However comma  no single AM CVn has yet been confirmed in any GC. We propose to carry out the first multi-epoch UV study of the low extinction comma  relatively massive Galactic GC 47 Tuc to identify the missing population of AM CVns through their outbursts. Using this novel technique we will test dynamical formation and evolutionary models of these binaries in clusters. We will also refine predictions of AM CVns as potential gravitational wave sources to be detected with LISA. Finding an upper limit on the rate of identifications that is lower than expected would change the current paradigm of GCs as efficient factories of compact binaries comma  especially those harboring white dwarfs. That would mean that the double degenerate path for SN Ia is negligible comma  which ultimately has cosmological implications.
DOI: 10.15156/bio/sh1284261.09fu
title: SH1284261.09FU

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-tzjg1g1
title: 16285

description: With this proposal we aim to investigate the relation between dust grain evolution comma  dust composition comma  dust extinction properties and environment in the Milky Way. To enable this comma  we need to expand the sample of depletion measurements comma  in particular to increase the number of sightlines with C and Si measurements comma  the two principal components of dust grains. We propose STIS spectroscopic observations towards 17 stars in a total of 31 orbits. These data (in combination with the available archival data) will allow us to study dust properties in a wide range of environments (from dense to diffuse gas clouds) comma  and help us understand which mechanisms play a role in dust evolution in the Milky Way.
DOI: 10.15156/bio/sh1284262.09fu
title: SH1284262.09FU

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-tznzikr
title: 16717

description: Binary mass transfer likely plays an outsized role in the evolution of massive stars comma  yet direct empirical constraints on these processes remain elusive. In particular comma  stars stripped by a binary companion are among the hottest sources of ionizing radiation expected at low metallicity. Such stripped stars plausibly dominate the flux of composite stellar populations at the hardest EUV energies comma  and may be required to explain the puzzling high-ionization nebular emission routinely encountered in low-metallicity star-forming galaxies. But despite substantial interest and modeling effort comma  only one star unambiguously stripped by binary interaction has yet been uncovered and studied in-detail. Exploratory optical spectroscopy in the extremely metal-poor (<10% solar) dwarf galaxy Leo A has recently uncovered a peculiar FUV-bright star with extremely prominent optical He II emission embedded in a small ionized nebula. Preliminary NLTE atmosphere modeling confirms that this source is broadly consistent with an intermediate mass metal-poor He star stripped by binary mass transfer  yet its fundamental properties remain uncertain without spectroscopy at the FUV wavelengths where it is brightest. Here we propose COS-G160M follow-up to confirm and characterize this unique target. These observations will enable confident measurement of the luminosity comma  temperature comma  and mass of this likely stripped star as well as strong constraints to be placed on its wind velocity structure and mass loss rate. The serendipitous discovery of this object represents an unexpected and extremely timely opportunity for HST to directly observe a product of binary evolution at unprecendentedly-low metallicity.
DOI: 10.57780/esa-u2pt01x
title: 16712

description: (3548) Eurybates will be the first Trojan asteroid to be explored in situ when the Lucy spacecraft flies by it in August 2027.  The possibility of close-up study of Eurybates. satellite comma  Queta comma  offers a unique opportunity to test whether Eurybates. unusual properties are tied to its collisional history and comma  more broadly comma  how collisional evolution shapes small body populations. It is critical to reduce the orbital uncertainty and improve knowledge of the relative position of Queta as soon as possible to understand if there could be an impact to Lucy.s encounter concept of operations and to optimize planning for the best angular resolution and lighting conditions in the brief window when observations can be made. By establishing a tighter constraint on the current orbit comma  it will be possible to accelerate searches for non-Keplerian motion should there be an additional satellite or satellites interior to Queta (as are commonly found in other collisional-family satellite systems). Additionally comma  we will use astrometric information from trailed stars in the full UVIS aperture to improve predictions for future stellar occultations. HST is required because Queta is 8.7 magnitudes fainter than Eurybates and will be observed at a separation of 0.5 arcsec - an observational regime that is unique to Hubble.