24,630 datasets found

Keywords: observational astronomy

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  • 58 radio sources near BNGSs

    We present a preliminary survey of 58 radio sources within the isoplanatic patches (r<25") of bright (11<R<12) stars suitable for use as natural guide stars with...
  • Chandra COSMOS survey I.

    The Chandra COSMOS Survey (C-COSMOS) is a large, 1.8Ms, Chandra program that has imaged the central 0.5deg^2^ of the COSMOS field (centered at 10h, +02d) with an effective...
  • XID II: RASS/BSC-2MASS/PSC cross-association

    The 18806 ROSAT All Sky Survey Bright Source Catalog (RASS/BSC) X-ray sources are quantitatively cross-associated with near-infrared (NIR) sources from the Two Micron All Sky...
  • A K-selected catalog of the ECDFS from MUSYC

    We present a new, K-selected, optical-to-near infrared photometric catalog of the Extended Chandra Deep Field South (ECDFS), making it publicly available to the astronomical...
  • GALEXGR6_7 NUV survey collection

    The Galaxy Evolution Explorer (GALEX) satellite is a NASA mission led by the California Institute of Technology to investigate how star formation in galaxies evolved from the...
  • A catalog of coronal "EIT wave" transients

    Solar and Heliospheric Observatory (SOHO) Extreme ultraviolet Imaging Telescope (EIT) data have been visually searched for coronal "EIT wave" transients over the period...
  • 1WHSP blazar candidates catalog

    The catalog 1WHSP is the result of a multi-frequency selection for blazars like SED, further filtered using IR-radio and IR-X-ray flux-ratios. The sample assembled contains...
  • Cepheids in 3 host galaxies

    This is the first of two papers reporting measurements from a program to determine the Hubble constant to ~5% precision from a refurbished distance ladder. We present new...
  • EGRET sup 100MeV survey collection

    This data presents all-sky maps of diffuse gamma radiation in energy ranges between 100 MeV to 150 MeV, based on data collected by the EGRET instrument on the Compton Gamma Ray...
  • QUIJOTE MFI DR1 11GHz Intensity survey collection

    The QUIJOTE (Q-U-I JOint TEnerife) CMB Experiment is a scientific collaboration between the Instituto de Astrofisica de Canarias (Tenerife, Spain), the Instituto de Fisica de...
  • 2MASS color J (1.23um), H (1.66um), K (2.16um) survey collection

    2MASS has uniformly scanned the entire sky in three near-infrared bands to detect and characterize point sources brighter than about 1 mJy in each band, with signal-to-noise...
  • AKARI FIS WideS (90um) survey collection

    AKARI (Previously known as ASTRO-F or IRIS - InfraRed Imaging Surveyor) is the second space mission for infrared astronomy in Japan. AKARI was developed by the members of...
  • PLANCK R2 nominal frequency HFI map 217Ghz survey collection

    The Planck mission will collect and characterise radiation from the Cosmic Microwave Background (CMB) using sensitive radio receivers operating at extremely low temperatures....
  • X-emitting stars identified from the RASS/SDSS

    The ROSAT All-Sky Survey (RASS) was the first imaging X-ray survey of the entire sky. Combining the RASS Bright and Faint Source Catalogs (Cat. , 1RXS and ) yields an average of...
  • CO in Galactic HII regions

    We derive the molecular properties for a sample of 301 Galactic HII regions including 123 ultra compact (UC), 105 compact, and 73 diffuse nebulae. We analyze all sources within...
  • BeppoSAX/GRBM {gamma}-ray Burst Catalog

    This is the catalog of Gamma-Ray Bursts (GRBs) detected with the Gamma Ray Burst Monitor aboard the BeppoSAX satellite. It includes 1082 GRBs with 40-700keV fluences in the...
  • AEGIS-X: Chandra deep survey

    We present the EGIS-X survey, a series of deep Chandra ACIS-I observations of the Extended Groth Strip. The survey comprises pointings at eight separate positions, each with...
  • PLANCK R3 frequency HFI map 217 GHz survey collection

    Planck is ESA's mission to observe the first light in the Universe. Planck was launched on 14 May 2009, and the minimum requirement for success was for the spacecraft to...
  • VLA survey of CDF-S. II.

    We present the optical and infrared identifications of the 266 radio sources detected at 20cm with the Very Large Array in the Chandra Deep Field-South. Using deep i-band...
  • VLA survey of the CDF-S I.

    We report 20 and 6cm VLA deep observations of the CDF-S including the Extended CDF-S. We discuss the radio properties of 266 cataloged radio sources, of which 198 are above a...
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