The VLT Survey Telescope ATLAS

Shanks, T.; Metcalfe, N.; Chehade, B.; Findlay, Joseph R.; Irwin, M. J.; González-Solares, E.; Lewis, Jim; Yoldaş, A.; Mann, Robert; Read, Mike; Sutorius, Eckhard; Voutsinas, S.

doi:10.1093/mnras/stv1130

Cited by 200 publications

(206 citation statements)

References 34 publications

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“…Optical photometry was obtained from the Guide Star catalog (GSC 2.3.2, Lasker et al 2008) in the R F B J V I N B-bands, the AAVSO Photometric All Sky Survey (APASS DR9, Henden et al 2016) in the V Bgri-bands, the SDSS DR12 (Alam et al 2015) in the ugriz-bands, the VST-ATLAS (DR2, Shanks et al 2015) and the Kilo-Degree (KiDS DR2, de Jong et al 2015) ESO public surveys in the ugriz-bands. For the optical magnitude distribution of the catalog see Fig.…”

Section: Multi-band Photometrymentioning

confidence: 99%

The population of hot subdwarf stars studied withGaia

Geier

Østensen

Németh

et al. 2017

A&A

134

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In preparation for the upcoming all-sky data releases of the Gaia mission we compiled a catalog of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases. The catalog contains 5613 unique sources and provides multiband photometry from the ultraviolet to the far infrared, ground based proper motions, classifications based on spectroscopy and colors, published atmospheric parameters, radial velocities and light curve variability information. Using several different techniques we removed outliers and misclassified objects. By matching this catalog with astrometric and photometric data from the Gaia mission, we will develop selection criteria to construct a homogeneous, magnitude-limited all-sky catalog of hot subdwarf stars based on Gaia data.

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Section: Multi-band Photometrymentioning

confidence: 99%

The population of hot subdwarf stars studied withGaia

Geier

Østensen

Németh

et al. 2017

A&A

134

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“…We targeted EPIC 229227292 7 (K p =16.7 mag, ATLASJ 134211.62−073540.1) for short-cadence K2 monitoring using an early data release of the VST/ATLAS survey, which is a deep ugriz photometric survey of the southern hemisphere (Shanks et al 2015). Based on its high reduced proper motion and ugr colors, we considered the object as a high-probability white dwarf near the DAV instability strip and proposed observation in K2 Campaign 6 (proposal GO6083).…”

Section: The Fourth Outburster: Epic 229227292mentioning

confidence: 99%

Outbursts in Two New Cool Pulsating Da White Dwarfs

Bell

Hermes

Montgomery

et al. 2016

ApJ

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The unprecedented extent of coverage provided by Kepler observations recently revealed outbursts in two hydrogen-atmosphere pulsating white dwarfs (DAVs) that cause hours-long increases in the overall mean flux of up to 14%. We have identified two new outbursting pulsating white dwarfs in K2, bringing the total number of known outbursting white dwarfs to four. EPIC 211629697, with T eff =10,780±140 K and g log =7.94±0.08, shows outbursts recurring on average every 5.0 days, increasing the overall flux by up to 15%. EPIC 229227292, with T eff =11,190±170 K and g log =8.02±0.05, has outbursts that recur roughly every 2.4 days with amplitudes up to 9%. We establish that only the coolest pulsating white dwarfs within a small temperature range near the cool, red edge of the DAV instability strip exhibit these outbursts.

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“…Unfortunately, IC1459 is too south to have been observed by SDSS, for this galaxy we used the data from the OmegaCAM science archive 8 . This archive contains data obtained on the VLT Survey Telescope (VST) mostly from the VST ATLAS survey (Shanks et al 2015). The VST ATLAS survey covers 4,500 deg 2 in the southern hemisphere at high galactic latitude with depth comparable to SDSS and the same set of 5 filters.…”

Section: Uv Datamentioning

confidence: 99%

“…Data pre-processing In order to compare images taken by different instruments, each map was converted in units of Jy/pixel with a common angular resolution of 12" and aligned so that they would cover the same area of the sky. The original angular resolution of each dataset was taken as 4.2" and 4.9" for GALEX 14 , 1.4" for SDSS (median in r 15 ), between 0.8" and 1.0" for Omega-CAM data (Shanks et al 2015), about 2.8" for 2MASS 16 1.66", 1.72", 1.88", 1.98" for IRAC 17 , 6" for 24 µm MIPS 18 , 5.8" and 12.0" for PACS (Poglitsch et al 2010). For each wavelength, a convolution kernel was computed to bring the PSF to 12" and each map was convolved using the appropriate kernel.…”

Section: Fir Observationsmentioning

confidence: 99%

SPECTRAL ENERGY DISTRIBUTION MAPPING OF TWO ELLIPTICAL GALAXIES ON SUB-kpc SCALES

Amblard¹,

Temi²,

Gaspari³

et al. 2016

ApJ

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We use high-resolution Herschel-PACS data of 2 nearby elliptical galaxies, IC1459 & NGC2768 to characterize their dust and stellar content. IC1459 & NGC2768 have an unusually large amount of dust for elliptical galaxies (1 to 3×10 5 M ), this dust is also not distributed along the stellar content. Using data from GALEX (ultra-violet) to PACS (far-infrared), we analyze the spectral energy distribution (SED) of these galaxies with CIGALEMC as a function of the projected position, binning images in 7.2" pixels. From this analysis, we derive maps of SED parameters, such as the metallicity, the stellar mass, the fraction of young star and the dust mass. The larger amount of dust in FIR maps seems related in our model to a larger fraction of young stars which can reach up to 4% in the dustier area. The young stellar population is fitted as a recent (∼ 0.5 Gyr) short burst of star formation for both galaxies. The metallicities, which are fairly large at the center of both galaxies, decrease with the radial distance with fairly steep gradient for elliptical galaxies.

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The VLT Survey Telescope ATLAS

Cited by 200 publications

References 34 publications

The population of hot subdwarf stars studied withGaia

The population of hot subdwarf stars studied withGaia

Outbursts in Two New Cool Pulsating Da White Dwarfs

SPECTRAL ENERGY DISTRIBUTION MAPPING OF TWO ELLIPTICAL GALAXIES ON SUB-kpc SCALES

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