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Start Over Subject optical astronomy Facility HST
1. ACS Galactic Globular Cluster Survey (ACSGGCT)
ID:
ivo://mast.stsci/acsggct
Title:
ACS Galactic Globular Cluster Survey (ACSGGCT)
Short Name:
HST.ACSGGCT
Date:
22 Jul 2020 22:26:50
Publisher:
Space Telescope Science Institute Archive
Description:
The ACSGGCT program used the HST ACS/WFC instrument to obtain uniform imaging of 65 of the nearest globular clusters to provide an extensive homogeneous dataset for a broad range of scientific investigations. An overview of the project was published by Sarajedini, A. et al. 2007, "The ACS Survey of Galactic Globular Clusters. I. Overview and Clusters Without Previous Hubble Space Telescope Photometry" AJ, 133, 1658.
2. Archive of Nearby Galaxies: Reduce, Reuse, Recycle (ANGRRR)
ID:
ivo://mast.stsci/angrrr
Title:
Archive of Nearby Galaxies: Reduce, Reuse, Recycle (ANGRRR)
Short Name:
HST.ANGRRR
Date:
22 Jul 2020 22:28:43
Publisher:
Space Telescope Science Institute Archive
Description:
An archive of stellar photometry for galaxies within 3.5 Mpc, excluding Local Group galaxies, based on primary and parallel wide-filter UV and optical observations taken with HST ACS/WFC or WFPC2.The sample includes all observations taken through Dec. 2008, as well as observations taken as part of Cycle 16 Supplemental GO programs 11986 and 11987. This release includes the ANGST targets within 3.5 Mpc; these observations have been rereduced using updated CTE corrections and zeropoints. Galaxies with 3.5 < D <= 5 Mpc will be included in a later release.
3. Cluster Lensing And Supernova survey with Hubble (CLASH)
ID:
ivo://mast.stsci/clash
Title:
Cluster Lensing And Supernova survey with Hubble (CLASH)
Short Name:
HST.CLASH
Date:
22 Jul 2020 22:29:29
Publisher:
Space Telescope Science Institute Archive
Description:
By observing 25 massive galaxy clusters with HST's new panchromatic imaging capabilities (Wide-field Camera 3, WFC3, and the Advanced Camera for Surveys, ACS), CLASH will accomplish its four primary science goals: - Map, with unprecedented accuracy, the distribution of dark matter in galaxy clusters using strong and weak gravitational lensing; - Detect Type Ia supernovae out to redshift z ~ 2, allowing us to test the constancy of dark energy's repulsive force over time and look for any evolutionary effects in the supernovae themselves; - Detect and characterize some of the most distant galaxies yet discovered at z > 7 (when the Universe was younger than 800 million years old - or less than 6% of its current age); - Study the internal structure and evolution of the galaxies in and behind these clusters.
4. Deep Optical Photometry of Six Fields in the Andromeda Galaxy
ID:
ivo://mast.stsci/andromeda
Title:
Deep Optical Photometry of Six Fields in the Andromeda Galaxy
Short Name:
HST.Andromeda
Date:
22 Jul 2020 22:25:44
Publisher:
Space Telescope Science Institute Archive
Description:
Using the Advanced Camera for Surveys on the Hubble Space Telescope, Thomas Brown (STScI) et al. obtained deep optical images reaching well below the oldest main sequence turnoff in six fields of the Andromeda Galaxy. The fields fall at four positions on the southeast minor axis, one position in the giant stellar stream, and one position on the northeast major axis. These data were obtained as part of three large observing programs (9453, 10265, 10816) designed to probe the star formation history of the stellar population in various structures of the galaxy.
5. ESO 565-11 UBVI(c) photometry
ID:
ivo://CDS.VizieR/J/AJ/118/2071
Title:
ESO 565-11 UBVI(c) photometry
Short Name:
J/AJ/118/2071
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present multiband Wide Field Planetary Camera 2 images of the central regions of ESO 565-11, a peculiar southern barred galaxy recently shown to have the largest known example of a circumnuclear starburst ring. We also present ground-based near-infrared H-band imaging and photometry of the galaxy. The results provide an interesting picture of the star-forming ring and its environment.
6. HDF photometric redshifts catalog
ID:
ivo://CDS.VizieR/J/ApJ/513/34
Title:
HDF photometric redshifts catalog
Short Name:
J/ApJ/513/34
Date:
21 Oct 2021
Publisher:
CDS
Description:
Using the newly available infrared images of the Hubble Deep Field in the J, H, and K bands and an optimal photometric method, we have refined a technique to estimate the redshifts of 1067 galaxies. A detailed comparison of our results with the spectroscopic redshifts in those cases where the latter are available shows that this technique gives very good results for bright enough objects [AB(814nm)<26.0]. From a study of the distribution of residuals [{Delta}z_rms_/(1+z)~0.1 at all redshifts], we conclude that the observed errors are mainly due to cosmic variance. This very important result allows for the assessment of errors in quantities to be directly or indirectly measured from the catalog. We present some of the statistical properties of the ensemble of galaxies in the catalog, and we finish by presenting a list of bright high-redshift (z~5) candidates extracted from our catalog together with recent spectroscopic redshift determinations confirming that two of them are at z=5.34 and z=5.60.
7. HDF-South catalogue of galaxies
ID:
ivo://CDS.VizieR/J/A+AS/145/111
Title:
HDF-South catalogue of galaxies
Short Name:
J/A+AS/145/111
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalogue of galaxies in the HDF-S, created using the public version 1 images of the WFPC2 data. We created a catalogue with 4 pass-band (I(814), V(606), B(450), U(300). In V(606), B(450), U(300) and I(814), for each galaxy the catalogue gives photometric parameters. For the I(814), we estimated also the colours and for I(814)<26, the petrosian radius, the mean surface brightness within the petrosian radius, light concentration indexes, that is C_eta_ and C_abr_, and the asymmetry index as computed by Abraham software.
8. HST/ACS observations of NGC 346
ID:
ivo://CDS.VizieR/J/ApJS/166/549
Title:
HST/ACS observations of NGC 346
Short Name:
J/ApJS/166/549
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a photometric study of the star-forming region NGC 346 and its surrounding field in the Small Magellanic Cloud, using data taken with the Advanced Camera for Surveys (ACS) on board the Hubble Space Telescope (HST). The data set contains both short and long exposures for increased dynamic range, and photometry was performed using the ACS module of the stellar photometry package DOLPHOT. We detected almost 100,000 stars over a magnitude range of V~11 to V~28 mag, including all stellar types from the most massive young stars to faint lower main-sequence and pre-main-sequence stars. We find that this region, which is characterized by a plethora of stellar systems and interesting objects, is an outstanding example of mixed stellar populations. We take into account different features of the color-magnitude diagram of all the detected stars to distinguish the two dominant stellar systems: the stellar association NGC 346 and the old spherical star cluster BS 90. These observations provide a complete stellar sample of a field about 5'x5' around the most active star-forming region in this galaxy. Considering the importance of these data for various investigations in the area, we provide the full stellar catalog from our photometry. This paper is the first part of an ongoing study to investigate in detail the two dominant stellar systems in the area and their surrounding field.
9. HST Cosmic Evolution Survey
ID:
ivo://mast.stsci/siap/hst.cosmos
Title:
HST Cosmic Evolution Survey
Short Name:
HST.COSMOS
Date:
23 Jul 2020 19:35:16
Publisher:
Space Telescope Science Institute Archive
Description:
COSMOS (P.I. Nicholas Scoville, California Institute of Technology, USA/CA) is an HST Treasury Program to survey a 2 square degree equatorial field, centered on RA=10:00:28.6 and DEC=+02:12:21.0 with the ACS in the I band of the VIMOS equatorial field. Parallel observations with WFPC2 and NICMOS were also obtained.
10. HST Hubble Deep Field
ID:
ivo://mast.stsci/siap/hst.hdf
Title:
HST Hubble Deep Field
Short Name:
HST.HDF
Date:
23 Jul 2020 19:35:54
Publisher:
Space Telescope Science Institute Archive
Description:
The Hubble Deep Field (HDF) is a Director's Discretionary program on HST in Cycle 5 to image a typical field at high galactic latitude in four wavelength passbands as deeply as reasonably possible. In order to optimize observing in the time available, a field in the northern continuous viewing zone (CVZ) was selected and images were taken for 10 consecutive days, or approximately 150 orbits. Shorter 1-orbit images were also obtained of the fields immediately adjacent to the primary HDF in order to facilitate spectroscopic follow-up by ground-based telescopes. The observations were carried out from 18-30 December 1995, and the data are available to the community for study.