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Related papers: Compact mid-IR sources east of galactic center sou…

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We present near-infrared (H band) surface photometry of 170 galaxies, obtained in 1997 using the Calar Alto 2.2m telescope equipped with the NICMOS3 camera MAGIC. The majority of our targets are selected among bright members of the Virgo…

Astrophysics · Physics 2009-10-31 A. Boselli , G. Gavazzi , P. Franzetti , D. Pierini , M. Scodeggio

We present our first results on field X-ray sources detected in a deep, 184.7 ks observation with the ACIS-I camera on Chandra. The observations target the Lynx field of SPICES, and contains three known X-ray-emitting clusters out to…

We present a current best estimate of the integrated near-infrared (NIR) extragalactic background light (EBL) attributable to resolved galaxies in J, H, and Ks. Our results in units of nW m-2 sr-1 are 11.7+5.6 -2.6 in J, 11.5+4.5 -1.5 in H…

Cosmology and Nongalactic Astrophysics · Physics 2011-05-18 Ryan C. Keenan , Amy J. Barger , Lennox L. Cowie , Wei-Hao Wang

Luminous radio sources are thought to lie in galaxy clusters or proto-clusters. The complete sample of 64 high-redshift 3C sources at $1<z<2.5$ has been mapped with the Spitzer Space Telescope. The IRAC $3.6\mu$m and $4.5\mu$m 5-$\sigma$…

Astrophysics of Galaxies · Physics 2017-10-09 Z. Ghaffari , Ch. Westhues , M. Haas , R. Chini , S. P. Willner , M. L. N. Ashby , B. J. Wilkes

We report on the mid-infrared imaging at 5, 7, 10 and 15 microns of the galaxy cluster Abell 2218 obtained with the ISOCAM instrument onboard ESA's Infrared Space Observatory (ISO), as part of an on-going program to image gravitational arcs…

Astrophysics · Physics 2007-05-23 B. Altieri , L. Metcalfe , A. Biviano , K. Leech , K. Okumura , B. Schulz , B. Mc Breen , M. Delaney

This note complements the article on X-ray and infrared variability of the X-ray binary Cyg X-3 (WR+c), published by me and my co-authors (ApJ, v.926, p. 123, 2022). In that paper, a compact IR source was discovered in the system, located…

High Energy Astrophysical Phenomena · Physics 2025-07-16 Igor I. Antokhin

We present follow-up observations of the far-infrared (FIR) sources at 90, 150 and 180 mu detected as part of the ISOPHOT EBL project, which has recently measured the absolute surface brightness of the cosmic infrared background radiation…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Petri Vaisanen , Jari K. Kotilainen , Mika Juvela , Kalevi Mattila , Andreas Efstathiou , Jere Kahanpaa

We present the final public data release of the VLT/ISAAC near-infrared imaging survey in the GOODS-South field. The survey covers an area of 172.5, 159.6 and 173.1 arcmin^2 in the J, H, and Ks bands, respectively. For point sources total…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 J. Retzlaff , P. Rosati , M. Dickinson , B. Vandame , C. Rite , M. Nonino , C. Cesarsky , the GOODS Team

We present VLA radio continuum observations at 3.6 and 6 cm of a ~0.65 sq.deg. field in the galactic plane at l=+45deg . These observations are meant to be used in a comparison with ISO observations at 7 and 15 um of the same region. In…

Astrophysics · Physics 2009-10-31 Leonardo Testi , Marcello Felli , Gregory B. Taylor

The second IBIS/ISGRI survey has produced a catalogue containing 209 hard X-ray sources visible down to a flux limit of around 1 milliCrab. The point source location accuracy of typically 1-3 arcminutes has allowed the counterparts for most…

Spectra have been obtained with the low-resolution modules of the Infrared Spectrograph (IRS) on the Spitzer Space Telescope (Spitzer) for 58 sources having f$_{\nu}$(24 micron) > 0.75 mJy. Sources were chosen from a survey of 8.2 deg$^{2}$…

We present new deep ($\sigma\sim6~\mu$Jy) radio images of the HH~124~IRS Radio Cluster at 4.8 and 7.5 GHz. We detect a total of 50 radio sources, most of them compact. Variability and spectral indices were analyzed in order to determine the…

Solar and Stellar Astrophysics · Physics 2015-06-19 Sergio Dzib , Laurent Loinard , Luis F. Rodríguez , Phillip Galli

We present low-resolution (64 < R < 124) mid-infrared (8--38 micron) Spitzer/IRS spectra of two z~1.3 ultraluminous infrared galaxies (LFIR~10^13) discovered in a Spitzer/MIPS survey of the Bootes field of the NOAO Deep Wide-Field Survey…

New moderate-resolution mid-infrared spectroscopy at 10 micron of 27 infrared galaxies is presented. The galaxies have been chosen from three 60 micron selected and one 12 micron selected complete flux-limited catalogs of galaxies; 17 of…

Astrophysics · Physics 2009-10-31 C. C. Dudley

A fast moving infrared excess source (G2) which is widely interpreted as a core-less gas and dust cloud approaches Sagittarius A* (SgrA*) on a presumably elliptical orbit. VLT K_s-band and Keck K'-band data result in clear continuum…

Context. In the near- to mid-infrared wavelength domain, bright continuum sources in the central parsec of the Galactic center (GC) are subject to foreground absorption. These sources therefore represent ideal probes of the intervening…

Astrophysics of Galaxies · Physics 2019-06-12 Jihane Moultaka , Andreas Eckart , Kiran Tikare , Armelle Bajat

We present results from an extensive spectroscopic survey in the 3-5 micron wavelength region of low-mass young stellar objects using VLT-ISAAC. Medium resolution spectra (R ~ 1000-10000) of young embedded stars in the mid-infrared allow…

Astrophysics · Physics 2009-11-10 K. M. Pontoppidan , E. F. van Dishoeck

This paper presents preliminary lists of potentially interesting point-like sources extracted from multicolor data obtained for a 1.7 square degree region near the South Galactic Pole. The region has been covered by the ESO Imaging Survey…

We present the results of a deep (1.1 Ms) observation of the Coma cluster of galaxies in the 18-30 keV band with the IBIS/ISGRI imager on board the INTEGRAL satellite. We show that the source extension in the North-East to South-West (SW)…

Astrophysics · Physics 2007-10-25 D. Eckert , N. Produit , A. Neronov , T. J. -L. Courvoisier

The Coronet Cluster in the nearby R CrA dark cloud offers the rare opportunity to study at least four "class I" protostellar sources as well as one candidate "class 0" source, a Herbig Ae star, and a candidate brown dwarf within a few…

Astrophysics · Physics 2009-11-11 Jan Forbrich , Thomas Preibisch , Karl M. Menten
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