cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.57780/esa-eh9gpdv
title: 16495

description: This program is a program to measure the change in the spectral resolution for the G130M-1222 and G160M-1577 settings at 7d_comma comma  9d_comma comma  11d_comma on the FUV detector as an exploratory program for Lifetime Position 6 (LP6). Knowledge of the COS line spread functions (LSFs) is critical for users to evaluate the feasibility and S-N requirements of their observations and to perform line profile fitting. It is not known what the spectral resolution is at and above 7d_comma comma  and we need to know how it changes as we move up the detector in order to optimize the placement of LP6 and future LPs.   To do so comma  we will acquire COS FUV G130M-1222 and G160M-1577 spectra of the SMC star AzV 80 comma  using two FPPOS to optimize the S-N whilst keeping overheads (due to split-LP-wavecals) at a minimum. Once all FPPOS settings are combined comma  our observations will reach a S-N of 42-resel. We will test whether previous STIS E140M spectra of AzV 80 convolved with model COS LSFs at LP2 (the nearest calibrated lifetime position on the detector) can reproduce on-orbit observed COS FUV spectra of the numerous ISM lines toward AzV 80 at three different detector positions of +7d_comma comma  +9d_comma and +11d_comma.  We will be able to measure the relative change in the spectral resolution comma  and unexpected larger variations in the COS LSFs larger than 15%.   For simplicity comma  we will use LP2 HV values of 173-175 (A-B) for all exposures.  This strategy is based on several earlier programs (LP4 resolution programs 14842 and 15366) comma  which executed successfully.  Azv80 is used instead of the usual target for resolution programs (Azv75) becuase the visibility windows of Azv75 are too small. The depth of absorption features in Azv80 are comparable to those in Azv75.
DOI: 10.57780/esa-ehhjivy
title: 16333

description: No abstract found for current proposal
DOI: 10.15156/bio/sh1284058.09fu
title: SH1284058.09FU

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/sh1284059.09fu
title: SH1284059.09FU

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-ei3qb5z
title: 16960

description: Monitor sensitivity of each MAMA grating mode to detect any change due to contamination or other causes. Also monitor the STIS focus in a spectroscopic and an imaging mode. Obtain exposures in each of the 2 low-resolution MAMA spectroscopic modes every 4 months comma  in each of the 2 medium-resolution modes once a year comma  and in each of the 5 echelle modes every 3 months comma  using unique calibration standards for each mode comma  and ratio the results to the first observations to detect any trends. In addition comma  each L-mode sequence will be preceeded by a CCD-F28X50OII image comma  two spectroscopic ACQ-PEAKs with the CCD-G230LB and crossed linear patterns comma  and two CCD-G230LB spectra comma  with the purpose of measuring the focus (PSF across the dispersion as a function of UV wavelength)  and each M-mode sequence will be preceded by a CCD-F28X50OII direct image also to monitor the focus.                    Beginning in Cycle 27 comma  WFC3 parallel observations have been added to all echelle visits to monitor focus contemporaneously.
DOI: 10.57780/esa-eik9j6f
title: 17066

description: The recent first-ever detections of the light elements comma  lithium and beryllium comma  in planetary bodies accreted by .polluted. white dwarf stars comma  has prompted varied explanations regarding their origin. A remarkable aspect of the observations is that the abundance ratios of Li and Be relative to major elements are significantly overabundant -- for Be the overabundance is two orders of magnitude. On the one hand comma  these elements are dosimeters for radiation environments and may be giving us a measure of the degree of spallation production that has occurred while the exoplanetary bodies were forming. On the other hand comma  chemical processes such as igneous differentiation (i.e. crust formation) could be responsible.  The last member of the set of light elements comma  boron comma  has never yet been observed in white dwarfs. We propose to conduct observations of the most promising WD that would be expected to display boron comma  and we can use the relative abundances of B and Be to discern between the possible formation scenarios.  Furthermore comma  the proposed observations are expected to easily measure the volatiles comma  C and N comma  in our target stars comma  and provide important constraints on the planetary formation scenarios being tested.  Only HST-COS can provide the required UV spectroscopy to observe B comma  C comma  and N comma  which are critical for this science.
DOI: 10.15156/bio/sh1284060.09fu
title: SH1284060.09FU

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-eiz9k8g
title: 16903

description: We ask for 3 WFC3-UVIS orbits to obtain F438W comma  F555W comma  and F814W images of the location of the Type Ia supernova (SN) 2017erp. We recently discovered a point source at the location of the SN in WFC3-IR observations taken during Feb. and Sep. 2021. We rule out the SN itself or a light echo. Instead comma  the object is consistent with a subgiant or red giant at a temperature of virgul5000 K comma  but with an abnormally high luminosity of virgul33 comma 000 Solar luminosities. It may be a clump of red giants or a globular cluster at or behind the location of the SN. No other SN Ia has ever been directly associated with such a stellar group. A more exciting possibility is that this object is the shock-heated surviving companion of SN 2017erp.s progenitor. If so comma  this will be the first-ever detection of a surviving companion in a normal SN Ia. It would also provide direct evidence of the d_commasingle degenerated_comma channel whereby a white dwarf explodes after accreting matter from a main sequence or evolved star. WFC3-UVIS has a higher resolution than WFC3-IR comma  which will allow us to precisely test the object.s coincidence with the SN and determine whether it is resolved or not. The images will also flesh out the object.s spectral energy distribution comma  for a more accurate classification comma  temperature comma  and luminosity. We ask for DD time so that these observations will be scheduled during 3-10 January 2022 or 14-28 February 2022 comma  when one last infrared visit to this field is planned. By obtaining optical and infrared images at the same time comma  we will gain a complete snapshot of the object at a single moment in time comma  providing a baseline for comparison with any future observations to test the object.s variability.
DOI: 10.57780/esa-eke7jce
title: 16556

description: Monitor the spectroscopic sensitivity of the CCD using both low- and medium-resolution grating settings to reveal any contamination issues which might affect the spectroscopic throughput.  This calibration program will monitor the spectroscopic sensitivity of CCD spectroscopic settings using the same high-declination calibration standard.  Results will be ratioed to the first observations to detect any trends.  Every four months comma  the L-modes will be observed at settings which cover both the nominal position and the recommended E1 position which places the spectrum closer to the CCD readout.  These visits comprise one orbit for each visit.  This program also monitors the medium-resolution gratings comma  with one visit.  This visit takes observations at two central wavelength settings of G230MB and G430M comma  at each of the nominal and E1 pseduo-aperture positions comma  and at 1 central wavelength setting of G750M (with the addition of an observation at the pseudo-aperature position to that at the nominal position).  CTE will also be verified.
DOI: 10.15156/bio/sh1284061.09fu
title: SH1284061.09FU

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-eolsc4f
title: 16740

description: The mere presence of hundreds of luminous quasars at cosmic dawn (redshift z>6 comma  age of the Universe <1 Gyr) represents a puzzle to mechanisms of formation and early growth of massive black holes and galaxies. The central engine of these quasars is a black hole of virgul1e9 solar masses. In the local universe comma  such massive black holes only reside in the most massive galaxies. Detailed optical IFU observations VLT-MUSE have indeed revealed massive and extended gaseous reservoirs fueling intense episodes of star formation in z>6 quasar hosts. At the same time comma  high-resolution ALMA observations unveiled highly massive and star forming galaxies. However comma  to date comma  the host starlight remain elusive at such early cosmic times comma  due to surface brightness and wavelength range limitations.  Here we propose to perform a survey of a sample of 9 QSOs at z>6 to image their host galaxy starlight in the rest-frame optical emission (which is a robust tracer of the stellar mass). For all these objects deep MUSE and ALMA observations shows the presence of extended gas reservoirs and dust. The ultimate goal of the project is to have direct constraints on the stellar distribution in these early active galaxies comma  and relate this information to the spatial distribution of gas and dust. This will allow us to investigate the interplay between star formation and the gas cycle in these systems.
DOI: 10.15156/bio/sh1284062.09fu
title: SH1284062.09FU

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-eq1d6zv
title: 16204

description: The chemical composition of an extrasolar planet is a fundamental property with little observational signature. Spectroscopic observations of polluted white dwarfs have proven to be a successful pathway to constrain the compositions of disrupted planetesimals but this approach has its own limitations. Here comma  we propose a new method to measure the compositions of extrasolar planetesimals by observing the gas debris around polluted white dwarfs. These disks are fresh extrasolar planetary material in a transient stage comma  right after tidal disruption and before being completely accreted onto the white dwarf. Recent increases in the sample size of white dwarf gas disks combined with timely advancements in disk modeling efforts have made this new exploration feasible. This proposal will open a noval method to measure chemical compositions of extrasolar planetesimals.
DOI: 10.57780/esa-eqbq5q8
title: 17014

description: We monitor the WFC3 UVIS shutter performance. The exposures need to be identical to previous cycles. Images with exposure times ranging from 0.5 to 17 seconds will be used to compare the photometric behavior of each shutter blade comma  for short vs long exposures and check for shutter shading effects. The first exposure of 0.5sec cannot be used since the lamp would be still heating during this exposure comma  so we will take a set of three 0.5sec exposures. Internal flats in each of the 4 amps will be used to monitor the repeatability and shutter shading effects.
DOI: 10.15156/bio/sh1284063.09fu
title: SH1284063.09FU

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-er5hazc
title: 16174

description: Debris disks are readily detectable tracers of embedded planetary systems  however comma  their complex internal structures are often challenging to interpret as most debris disks do not harbor known exoplanets. The prototypical debris disk around Beta Pic and its two relatively short-period super-Jupiter planets offer a unique laboratory for studying planet-disk interactions. Five mechanisms have been identified through models in which Beta Pic b may shape the complex disk structure and may perturb planetesimals into an inclined orbit comma  giving rise to the secondary disk discovered with HST. Structures shaped by the planet.s resonances can introduce large-scale azimuthal asymmetries in the disk that orbit on timescales similar to that of the planet (virgul18 yr). With STIS images from 1997 and 2012 a uniquely long baseline is available for identifying the temporal evolution of the disk comma  which is predicted to evolve on comparable Keplerian timescales. We propose to revisit and continue monitoring the Beta Pic disk with STIS to characterize the temporal evolution of the disk. By repeating the earlier observations we will detect variations as small as 1% at 0.5d_comma. In comparison comma  models of radiation-pressure driven small grains freed from planetesimals trapped in resonance with the planet predict variations up 300% in this component. We will identify disk structures and dust grain populations that are a result of interactons with the two giant planets comma  directly testing models explaining the disks. complex structure. These observations will provide an entirely new set of constraints on the 3D structure and dynamics of the only known disk-planet system where such measurements are possible.
DOI: 10.15156/bio/sh1284064.09fu
title: SH1284064.09FU

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-eria2co
title: 16547

description: Monitor the bias in the 1x1 bin setting at gain=1 comma  and 1x1 at gain = 4 comma  to build up high-S-N superbiases and track the evolution of hot columns. Monitor the read noise for 1x1 binning for GAIN=1 and GAIN=4.
DOI: 10.57780/esa-eu0zbzg
title: 16721

description: The origin of giant planets and brown dwarfs discovered with direct imaging at wide separations (>10 AU) is challenging to establish because multiple formation and migration mechanisms are possible.  The goal of this program is to determine the angular momentum architecture of systems hosting imaged substellar companions to constrain their formation and evolutionary history.  We propose WFC3-IR time-series observations of three substellar companions spanning 10-60 Mjup to search for rotationally modulated photometric variability.  Rotation periods will be combined with projected rotational velocities (vsini values) and orbit monitoring efforts from the ground to assess the geometric alignment between the orbital angular momentum vector and both the stellar and companion spin axes.  Mutual alignment would point to a disk-based origin while misalignment will indicate an alternative route or dynamical evolution.  To date comma  only a single obliquity angle has been measured for a substellar companion  we aim to broaden this to a larger sample comma  paving the way for similar studies of lower-mass planets at longer wavelengths with JWST.
DOI: 10.15156/bio/sh1284065.09fu
title: SH1284065.09FU

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.