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相关论文: A Catalogue of Mid-infrared Variable Sources from …

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Most of the radio-loud narrow-line Seyfert 1 (NLS1) galaxies resemble compact steep-spectrum sources. However, the extremely radio-loud ones show blazar-like characteristics, like flat radio spectra, compact radio cores, substantial…

星系天体物理 · 物理学 2018-07-18 K. É. Gabányi , A. Moór , S. Frey

The \emph{Wide-field Infrared Survey Explorer} has surveyed the entire sky at four infrared wavelengths with greatly improved sensitivity and spatial resolution compared to its predecessors, the \emph{Infrared Astronomical Satellite} and…

We present a catalog of Galactic star clusters, associations and candidates with 10978 entries. This multi-band catalog was constructed over 20 years, starting with visual inspections on the Digital Sky Survey and incremented with the…

星系天体物理 · 物理学 2019-01-02 Eduardo Bica , Daniela B. Pavani , Charles J. Bonatto , Eliade F. Lima

A key science driver for the next generation of wide-field optical and radio surveys is the exploration of the time variable sky. These surveys will have unprecedented sensitivity and areal coverage, but will be limited in their ability to…

星系天体物理 · 物理学 2013-12-04 G. J. Madsen , B. M. Gaensler

The mid-infrared provides a unique view of galaxy stellar populations, sensitive to both the integrated light of old, low-mass stars and to individual dusty mass-losing stars. We present results from an extended Spitzer/IRAC survey of M31…

星系天体物理 · 物理学 2017-03-29 P. Barmby , M. Rafiei Ravandi

Utilizing a decade-long unTimely dataset, supplemented by multi-band data from archives, we search for young stellar objects (YSOs) with variations larger than one magnitude in W1 band within a region of 110 square degrees in the Galactic…

太阳与恒星天体物理 · 物理学 2024-06-27 Jiaxun Li , Tinggui Wang

We present an all-sky sample of 984 candidate intermediate-mass Galactic star-forming regions color-selected from the Infrared Astronomical Satellite (IRAS) Point Source Catalog and morphologically classify each object using mid-infrared…

We fit a parametric model comprising a mixture of multi-dimensional Gaussian functions to the 3.6 to 8um colour and optical photo-z distribution of galaxy populations in the ELAIS-N1 and Lockman Fields of SWIRE. For 16,698 sources in…

We have used the MHW2 filter to obtain estimates of the flux densities at the WMAP frequencies of a complete sample of 2491 sources, mostly brighter than 500 mJy at 5 GHz, distributed over the whole sky excluding a strip around the Galactic…

We present a systematic search for variability among the ROSAT All-Sky Survey (RASS) X-ray sources. We generated lightcurves for about 30000 X-ray point sources detected sufficiently high above background. For our variability study…

天体物理学 · 物理学 2009-11-07 B. Fuhrmeister , J. H. M. M. Schmitt

In preparation for the upcoming all-sky data releases of the Gaia mission we compiled a catalogue of known hot subdwarf stars and candidates drawn from the literature and yet unpublished databases. The catalogue contains 5613 unique sources…

太阳与恒星天体物理 · 物理学 2017-04-05 S. Geier , R. H. Østensen , P. Nemeth , N. P. Gentile Fusillo , B. T. Gänsicke , J. H. Telting , E. M. Green , J. Schaffenroth

We describe a methodology to classify periodic variable stars identified using photometric time-series measurements constructed from the Wide-field Infrared Survey Explorer (WISE) full-mission single-exposure Source Databases. This will…

天体物理仪器与方法 · 物理学 2015-06-18 Frank J. Masci , Douglas I. Hoffman , Carl J. Grillmair , Roc M. Cutri

We identify 709 arc-shaped mid-infrared nebula in 24 micron Spitzer Space Telescope or 22 micron Wide Field Infrared Explorer surveys of the Galactic Plane as probable dusty interstellar bowshocks powered by early-type stars. About 20% are…

We present variability analysis of data from the Northern Sky Variability Survey (NSVS). Using the clustering method which defines variable candidates as outliers from large clusters, we cluster 16,189,040 light curves, having data points…

太阳与恒星天体物理 · 物理学 2012-02-13 Min-Su Shin , Hahn Yi , Dae-Won Kim , Seo-Won Chang , Yong-Ik Byun

Stars with excess infrared radiation from circumstellar dust are invaluable for studies of exoplanetary systems, informing our understanding on processes of planet formation and destruction alike. All-sky photometric surveys have made the…

太阳与恒星天体物理 · 物理学 2020-03-18 Erik Dennihy , Jay Farihi , Nicola Pietro Gentile Fusillo , John H. Debes

We present a high quality multiwavelength (from 0.3 to 8.0 micron) catalog of the large and deep area in the GOODS Southern Field covered by the deep near-IR observations obtained with the ESO VLT. The catalog is entirely based on public…

天体物理学 · 物理学 2009-07-28 A. Grazian , A. Fontana , C. De Santis , M. Nonino , S. Salimbeni , E. Giallongo , S. Cristiani , S. Gallozzi , E. Vanzella

Variable sources probe a wide range of astrophysical phenomena. We present a catalog of over ten million variable source candidates found in Data Release 1 (DR1) of the Zwicky Transient Facility (ZTF). We perform a periodicity search up to…

太阳与恒星天体物理 · 物理学 2020-11-04 Eran O. Ofek , Maayane Soumagnac , Guy Nir , Avishay Gal-Yam , Peter Nugent , Frank Masci , Shrinivas R. Kulkarni

Based on the Seventh Data Release (DR7) quasar catalog from the Sloan Digital Sky Survey, we investigate the variability of optical quasars in W1, W2, W3 and W4 bands of the Wide-field Infrared Survey Explorer (WISE) and the Near-Earth…

星系天体物理 · 物理学 2023-08-28 Hongtao Wang , Yong Shi

The Wide-field Infrared Survey Explorer (WISE) mapped the entire sky at mid-infrared wavelengths 3.4, 4.6, 12 and 22 microns. The mission was primarily designed to extract point sources, leaving resolved and extended sources unexplored. We…