K-band Arcetri Obscured Supernova Search . What is the KAOSS Project? W hat is the KAOSS Project? Some recent surveys aimed at detecting Supernovae (SNe) in the optical have found that starburst galaxies do not show evidence for an enhanced SN rate, with respect to quiescent galaxies (Richmond et al. ... A similar result was obtained by Navasardyan et al. (2001) who looked for SNe in interacting galaxies, finding no evidence for correlations between SN rate and galaxy properties. ...

GRB 151027B, Swift's 1,000th burst (center), is shown in this composite X-ray, ultraviolet and optical image. X-rays were captured by Swift's X-Ray Telescope, which began observing the field 3.4 minutes after the Burst Alert Telescope detected the blast. Swift's Ultraviolet/Optical Telescope (UVOT) began observations seven seconds later and faintly detected the burst in visible light. ... The image has a cumulative exposure of 10.4 hours. ...

ST ScI Preprint #1394 . Authors: Christopher P. O'Dea, 1 Willem H. De Vries, 1,2 D. M. Worrall, 3 Stefi A. Baum, 1 Anton Koekemoer 1 We present ASCA SIS and GIS observations of two GHz peaked spectrum (GPS) radio galaxies, PKS 1345+125 (4C12.50, z = 0.122) and 2352+495 ( z = 0.237). ... These measurements do not violate predictions of Heinz et al.'s recent evolving source model for radio sources, although deeper X-ray observations are needed for a strong test of the model. ...

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

... GAMMA RAY BURSTS . with guest Dr. Dale Frail from National Radio Astronomy Observatory . ... Gamma-Ray Bursts . A Collection of Resources to Get Behind the Headlines . Andrew Fraknoi (Foothill College & ASP) . ... This is a fine introduction to violent events in the universe by a noted astronomer, with a good section on gamma-ray bursts. ... On the Swift mission and what it is teaching astronomers about gamma-ray bursts. ... http://imagine.gsfc.nasa.gov/docs/science/know_l1/bursts.html . ...

SKA-3 instrument consists of two energy-angle ( EA ) electrostatic analyzers and two energy-mass ( EM ) time-of-flight analyzers. ... Here you can find more details about SKA-3 instrumentation set. ... Case 218 . ... satellite's trajectory in geomagnetic frame ( blue coloured), UFSIPS scan location and observation moment ( red coloured), interval of the SKA-3 observations ( green coloured) . ... a view of the Nothern polar region at the moment of UFSIPS observations, the scan location is red coloured. ...

CONSTRAINING LONG-TERM AND SPATIAL VARIABILITY OF THE PN LOW ENERGY RESPONSE WITH RXJ1856 (IUSS Pavia; INAF, IASF-Milano) In collaboration with: N. Sartore, S. Mereghetti, A. De Luca, R. Turolla, F. Haberl Andrea Tiengo RX J1856.5-3754 (RXJ1856) Brightest of the "Magnificent Seven", or X-ray Dim Isolated Neutron Stars (XDINSs) (e.g. Turolla 2009 f or a review) The closest known neutron star: d ~120 pc (W alter et al. ... 2011) Why studying RXJ1856 variability? ...

An investigation of the spectral energy distribution (SED) of the compact steep-spectrum (CSS) source and possible radio-loud narrow-line Seyfert 1 galaxy (NLS1), PKS 2004-447, is presented. ... Analysis of a non-contemporaneous, low-resolution optical spectrum suggests that the narrow-line region (NLR) is much more reddened than the X-ray emitting region suggesting that the gas-to-dust ratio in PKS 2004-447 may be very different than in our own Galaxy. ...

... At 22:42:27 UT 26/07/09, the Burst Alert Telescope (BAT) on board of the SWIFT multi-wavelength space observatory triggered and located GRB 090726 gamma-ray burst event. ... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ...

... The MMT optical spectra of SBS 0335-052W were obtained on 1996 January 19 with the Red Channel of the MMT Spectrograph. ... The linear scale is 1 = 263 pc at the distance to SBS 0335-052W of 54.1 Mpc. ... In Table 1, the observed line intensities and intensities corrected for interstellar extinction for SBS 0335-052W are shown along with extinction coefficient C (H ), observed flux of the H emission line, the equivalent width EW (H ) and equivalent width of absorption Balmer hydrogen lines EW (abs)....

... 17.05.2002 . ... Credit: S. Kulkarni, J. Bloom, P. Price, Caltech - NRAO GRB Collaboration Explanation: On the 21st of November 2001, satellites detected yet another burst of gamma-rays from the cosmos. ... Seen above in a series of Hubble Space Telescope images recorded from December 4, 2001 to May 5, 2002 (13 through 161 days after the burst), the fading transient lies to the right of a fuzzy, distant galaxy, likely home to the gamma-ray burster. ... 2001 2002 . ... Gamma Ray Bursting . ...

... Flux density at 1 GHz (/Jy): 35? ... Radio: Incomplete shell, including wide `v' of emission to east with small flat-spectrum source at apex. ... X-ray: Pulsar detected, with faint extension. ... Molonglo at 408 MHz (3': S=38 Jy). ADS . ... Optical detection. ... Becker & Helfand 1985, Nature, 313, 115. ... 1985, MNRAS, 212, 975. Pulsar detection. ... 1991, MNRAS, 253, 7P. Pulsar and remnant association. ... Pulsar observations, including proper motion. ... 2001, ApJ, 562, L163. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... The spectral energy distribution of StHa 169 from the near-UV to near IR. ... We present Kepler and Swift observations of StHa 169 which is currently classified as a symbiotic binary. The Kepler light curve shows quasi periodic behaviour with a mean period of 34 d and an amplitude of a few percent. Using Swift data we find a relatively strong UV source at the position of StHa 169 but no X-ray counterpart. ...

... AGES Precursor Observations · Targeted the M74 ( NGC 628) group · Noise falls as t (to 200s) AGES Precursor Observations · Targeted the M74 ( NGC 628) group · Noise falls as t (to 200s) AGES Precursor Observations · Targeted the M74 ( NGC 628) group · Noise falls as t (to 200s) · Detected 5 galaxies in the group KDG 010 dw0137+1540 UGC 1171 AGES Precursor ...

XTE J1908+094 P. M. Woods, C. Kouveliotou, M. H. Finger, and E. Gogus, National Space Science and Technology Center; and J. Swank, C. Markwardt, and T. Strohmayer, Goddard Space Flight Center, report the serendipitous discovery of a new x-ray transient, XTE J1908+094, in RXTE PCA observations of the soft-gamma-ray repeater SGR 1900+14, triggered following the burst activity on Feb. ... The authors conclude that XTE J1908+094 is a new blackhole candidate. ... IAUC 7856; Feroci et al., ...

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Discover the cosmos! ... 2002 May 17 . Gamma-Ray Burst, Supernova Bump . ... Explanation: On the 21st of November 2001, satellites detected yet another burst of gamma-rays from the cosmos. ... Seen above in a series of Hubble Space Telescope images recorded from December 4, 2001 to May 5, 2002 (13 through 161 days after the burst), the fading transient lies to the right of a fuzzy, distant galaxy, likely home to the gamma-ray burster. ... About APOD | ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

... Fall 2005 . Fall 2004 . Winter 2005 . Spring 2005 . Summer 2005 . Fall 2003 . Winter 2004 . Spring 2004 . Summer 2004 . Fall 2002 . Winter 2003 . Spring 2003 . Summer 2003 . ... The Swift gamma-ray burst explorer was launched on Nov. 20, 2004 from Cape Canaveral, Florida. ... A number of models describing exotic forms of matter, generically referred to as dark energy (not to be confused with dark matter), have been proposed to explain this acceleration. ...

... This paper presents the TAROT-2 project an automatic, autonomous observatory. Its main objectives are the study of cosmic Gamma-Ray bursts and the detection of extrasolar planets. ... 1999; Bo?r et al. 2000), an automated telescope mainly devoted to the observation of cosmic gamma-ray bursts. This telescope has achieved a high degree of autonomy, being able to process the requests, establish its own schedule, and process the observations to produce a source list matched with several catalogs. ...