Number of results to display per page
Search Results
- ID:
- ivo://CDS.VizieR/J/A+A/613/A40
- Title:
- PACS photometry of FIR faint stars
- Short Name:
- J/A+A/613/A40
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Our aims are to determine flux densities and their photometric accuracy for a set of seventeen stars that range in flux from intermediately bright (<~2.5Jy) to faint (>~5mJy) in the far-infrared (FIR). We also aim to derive signal-to-noise dependence with flux and time, and compare the results with predictions from the Herschel exposure-time calculation tool. We obtain aperture photometry from Herschel-PACS high-pass-filtered scan maps and chop/nod observations of the faint stars. The issues of detection limits and sky confusion noise are addressed by comparison of the field-of-view at different wavelengths, by multi-aperture photometry, by special processing of the maps to preserve extended emission, and with the help of large-scale absolute sky brightness maps from AKARI. This photometry is compared with flux-density predictions based on photospheric models for these stars. We obtain a robust noise estimate by fitting the flux distribution per map pixel histogram for the area around the stars, scaling it for the applied aperture size and correcting for noise correlation.
- ID:
- ivo://archive.stsci.edu/catalogs/HLSP_PHAT
- Title:
- Panchromatic Hubble Andromeda Treasury ConeSearch
- Short Name:
- PHAT CS
- Date:
- 23 Jul 2020 20:42:13
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- The Panchromatic Hubble Andromeda Treasury is a Hubble Space Telescope Multi-cycle program to map roughly a third of M31's star forming disk, using 6 filters covering from the ultraviolet through the near infrared. With HST's resolution and sensitivity, the disk of M31 will be resolved into more than 100 million stars, enabling a wide range of scientific endeavors. The PHAT observations are grouped into 23 "bricks", each listed under a different proposal ID. Each brick consists of a 3x6 array of pointings, producing complete coverage in the UV, optical, and NIR. Each brick is observed as two 3x3 "half bricks", with observations taken ~6 months apart. In the first observing season, a 3x3 half brick of WFC3 pointings is completed in primary, while parallel observations produce a highly overlapping 3x3 tile of ACS observations in the adjacent half brick. After 6 months, the telescope can be rotated by 180 degrees from the original orientation, such that the primary WFC3 pointings cover the area that was tiled by ACS in the first season, and vice versa. Each pointing is observed for 2 orbits, using the 2 WFC3 cameras for one orbit each. Filters: F275W+F336W (WFC3/UVIS), F475W+F814W (ACS/WFC), F110W+F160W (WFC3/IR) Depth: UVIS data reach a magnitude limit of ~25 in F275W and F336W. ACS data reach maximum depths of ~28 magnitudes in F475W and ~27 magnitudes in F814W in the uncrowded outer disk. In these same regions, WFC3/IR data reach maximum depths of ~26.5 and ~25.5 in F110W and F160W, respectively. However, the depth is crowding limited in the optical and NIR, and thus is a strong function of radius. As a result, photometry in the inner bulge fields is far shallower. All available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html.
- ID:
- ivo://mast.stsci/phat
- Title:
- Panchromatic Hubble Andromeda Treasury (PHAT)
- Short Name:
- PHAT
- Date:
- 23 Jul 2020 19:28:22
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- The Panchromatic Hubble Andromeda Treasury is a Hubble Space Telescope Multi-cycle program to map roughly a third of M31's star forming disk, using 6 filters covering from the ultraviolet through the near infrared. With HST's resolution and sensitivity, the disk of M31 will be resolved into more than 100 million stars, enabling a wide range of scientific endeavors.
- ID:
- ivo://archive.stsci.edu/catalogs/PanSTARRS1DR1Best
- Title:
- Pan-STARRS DR1 "Best" Catalog ConeSearch
- Short Name:
- PS1DR1Cone
- Date:
- 13 Feb 2020 17:45:49
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- Pan-STARRS is a system for wide-field astronomical imaging developed and operated by the Institute for Astronomy at the University of Hawaii. Pan-STARRS1 (PS1) is the first part of Pan-STARRS to be completed and is the basis for Data Release 1 (DR1). The PS1 survey used a 1.8 meter telescope and its 1.4 Gigapixel camera (GPC1; see PS1 GPC1 camera) to image the sky in five broadband filters (g, r, i, z, y). The PS1 Science Consortium funded the operation of the Pan-STARRS1 telescope, situated at Haleakala Observatories near the summit of Haleakala in Hawaii, for the purposes of astronomical research. The PS1 consortium is made up of astronomers and engineers from 14 institutions from six countries. The Pan-STARRS Data Release 1 Object Catalog "Best" filtered exists in the MAST holdings and is thus available through a cone search. The filtered data is a ~2billion row subset based on an object having more than 2 detections. All available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html.
- ID:
- ivo://archive.stsci.edu/catalogs/PanSTARRS1
- Title:
- Pan-STARRS DR1 Catalog ConeSearch
- Short Name:
- PanSTARRS1
- Date:
- 13 Feb 2020 17:45:19
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- Pan-STARRS is a system for wide-field astronomical imaging developed and operated by the Institute for Astronomy at the University of Hawaii. Pan-STARRS1 (PS1) is the first part of Pan-STARRS to be completed and is the basis for Data Release 1 (DR1). The PS1 survey used a 1.8 meter telescope and its 1.4 Gigapixel camera (GPC1; see PS1 GPC1 camera) to image the sky in five broadband filters (g, r, i, z, y). The PS1 Science Consortium funded the operation of the Pan-STARRS1 telescope, situated at Haleakala Observatories near the summit of Haleakala in Hawaii, for the purposes of astronomical research. The PS1 consortium is made up of astronomers and engineers from 14 institutions from six countries. The Pan-STARRS Data Release 1 Object Catalog v3 exists in the MAST holdings and is thus available through a cone search. All available catalogs are listed at http://archive.stsci.edu/vo/mast_services.html.
- ID:
- ivo://archive.stsci.edu/cs/ps1dr2
- Title:
- PS1DR2 Cone (PanSTARRS 1 DR 2 Catalog ConeSearch)
- Short Name:
- PS1DR2 ConeSearch
- Date:
- 02 Aug 2024 14:04:26
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- All MAST catalog holdings are available via Cone Search endpoints. This service provides access to the PanSTARRS 1 DR2 catalog. All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
108. RC3 ConeSearch
- ID:
- ivo://archive.stsci.edu/catalogs/RC3
- Title:
- RC3 ConeSearch
- Short Name:
- RC3 CS
- Date:
- 13 Feb 2020 17:38:51
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- All MAST catalog holdings are available via a ConeSearch endpoint. The Third Reference Catalog of Bright Galaxies (RC3) by G. and A. de Vaucouleurs, H.G. Corwin, R.J. Buta, G. Paturel, and P. Fouque. is included as held in a MAST local copy. All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
- ID:
- ivo://CDS.VizieR/J/A+A/568/L12
- Title:
- Rotational frequency splitting in Sun-like stars
- Short Name:
- J/A+A/568/L12
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Asteroseismology offers the prospect of constraining differential rotation in Sun-like stars. Here we have identified six high signal-to-noise main-sequence Sun-like stars in the Kepler field, which all have visible signs of rotational splitting of their p-mode frequencies. For each star, we extract the rotational frequency splitting and inclination angle from separate mode sets (adjacent modes with l=2, 0, and 1) spanning the p-mode envelope. We use a Markov chain Monte Carlo method to obtain the best fit and errors associated with each parameter. We are able to make independent measurements of rotational splittings of ~8 radial orders for each star. For all six stars, the measured splittings are consistent with uniform rotation, allowing us to exclude large radial differential rotation. This work opens the possibility of constraining internal rotation of Sun-like stars.
110. SDSS ConeSearch
- ID:
- ivo://archive.stsci.edu/catalogs/SDSS
- Title:
- SDSS ConeSearch
- Short Name:
- SDSS CS
- Date:
- 13 Feb 2020 17:40:32
- Publisher:
- Space Telescope Science Institute Archive
- Description:
- All MAST catalog holdings are available via a ConeSearch endpoint. The Sloan Digital Sky Survey (SDSS) Data Release 12 (SDSS DR12) contains all SDSS observations through July 2014. The STScI mirror is available here. More information on SDSS and this data release are available at http://www.sdss.org/dr12/. All available missions are listed at http://archive.stsci.edu/vo/mast_services.html.
