. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Taken on the 24th November by John McConnell. It shows the ISS and an unidentified satellite . Friday, 2 January 2009 23:14 . International Year of Astronomy, Ireland National Node . [Back To Top] .

Next: Sample Properties Up: Sample Identification Previous: Comments on Individual Sources . Previously known serendipitous sources were selected by cross-correlating WGACAT with a variety of optical and radio catalogs, including the Ver?n-Cetty & Ver?n (1996) and Hewitt & Burbidge (1993) quasar catalogs, the 1 Jy (Stickel et al. 1994) and S4 (Stickel & K?hr 1994) radio catalogs, and the BL Lac catalog of Padovani & Giommi (1995b). ... Details of these 97 objects are given in Table 6. ...

Next: References Up: No Title Previous: Observational data and reduction . ... A minor loss of information is due to the overestimation of the scattered light in the region of and to the broad emission lines and . On the diagrams are shown the blue-shifted absorption lines and the interstellar diffusion bands. ... In Table 1 are given only emission lines. Questionable features and the lines that fell within the gaps are not included in it, question-marks are for unreliable identification. ...

Proposal Identification No.: ... Section IV - RFI Considerations 2 Frequency Ranges Planned 300 - 350 Section V - Observing List Target List 00:31:06.0 01:02:12.7 02:39:32.8 03:12:48.7 03:18:01.9 03:38:16.7 03:41:51.7 04:31:33.5 05:16:47.9 05:26:38.1 06 ... 07:11:38 06:12:48 10:13:29 15:48:36 01:31:12 06:32:31 12:12:43 35:55:47 36:52:56 12:13:13 26:05:07 07:02:53 07:07:24 Fermi2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL 2FGL ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... More UFOs identified . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

DIS-III Spectra Other information . ... LOW Blue . ... MED Blue . ... HIGH Blue . ... Lines / mm . ... 5.03е /pix . 2.43е /pix . 2.26е /pix . 1.23е /pix . 0.84е /pix . 0.62е /pix . ... 7.0 е /pix . 3.05е /pix . 3.15е /pix . ... 1.17е /pix . ... Spacial scale for Blue gratings are: 0.42 arc-sec/pixel . ... 300 lines/mm . Low Blue . ... Med Blue . ... 0.9 " slit . ... unidentified . ... Offset Directions for DIS Using Various Interfaces as viewed by the Slit Camera . ...

Download Izmccd (~2.7 MB). Solution of problems at identification of star field. ... 2) Scale is not correct. ... In this case algorithm of identification will revise all values of scale from twice smaller up to twice greater. ... There should be more than value of the field "Number of stars in frame". ... The star field is considered identified if number of the identified stars more or equally to this value. It is necessary to set value from 4 up to value of field "Number of stars in frame". ...

Fermi s Gamma ray Pulsars . ... Traditionally identified and studied by observing their regular radio pulsations , two dozen pulsars have now been detected at extreme gamma-ray energies by the Fermi Gamma-ray Space Telescope . ... This gamma-ray all-sky map, aligned with the plane of our Milky Way Galaxy, shows the pulsar positions, with the 16 new Fermi pulsars circled in yellow (8 previously known radio pulsars are in magenta). ... NASA Web Site Statements, Warnings, and Disclaimers . ...

On the problem of using of the ICRF radio coordinates reference system Lipovka A.A. (1), Lipovka N.M. (1) Center of research for physics, Sonora State University e-mail: nila_lip@mail.ru Bibliography 1. ... Columns 8, 9 are corrections to right ascension and declination, which should be added to coordinates of ICRF2 radio sources, to obtain coordinates of optical objects, with which these radio sources are identified. ... Lipovka .. ... Fig 3 Fig 3 ...

When entering Identification section user should open the file with observed positions of objects which are to be identified (the file may be first created). ... Format of observations must coincide with that of optic observations in which they are published by Minor Planet Center (observed position may be presented as “accurate” or “approximate” one): . ... observed right ascension (in hours, minutes, and seconds of time (“accurate position”) or in hours and minutes (“approximate position”) . ...

... The radio view of the Seyfert galaxy PKS 2004-447 . ... The Fermi gamma-ray satellite has identified over 1500 gamma-ray sources with other galaxies. The majority are classified as flat-spectrum radio quasars, or BL Lacerate objects: just a handful have been identified with narrow-line Seyfert galaxies. ... These characteristics are extremely rare among gamma-ray loud AGN. Reference: "The Gamma-Ray Emitting Radio-Loud Narrow-Line Seyfert 1 Galaxy PKS 2004-447 II. ... today * ATNF | ...

... Solar structures oscillate · · many different oscillation periods have been identified - lots of frequency space to examine. concentrate on 3 and 5 minute wavebands. ... Identification of oscillating individual pixels, then segmentation into significant groups Data · · · · Use SPoCA active region detections. ... Analysis · · Oscillation model in each pixel dj = A cos( tj )+ B sin( tj ) Calculate (Bayesian) probability p() that the timeseries dj observed at times tj= j.t (1jN) supports a frequency . ...

TEST AND REGISTRATION . USER'S GUIDE . ... 1.3 T&R Query Selection Criteria/Registration Data Entry 4 . 1.3.1 Character by Character Data Entry 4 . 1.3.2 Character and Wildcard Data Entry 4 . 1.3.3 List of Field Values Data Entry 4 . ... 2.3 T&R Test Requirements Specification Queries 12 . 2.4 T&R Detailed Test Results Queries 13 . ... T&R MHS Access 23 . 4.1 T&R Query Operations Using MHS 23 . ... APPENDIX A: Fields Allowing "List of Field Values" 25 . ...

Supernova 2003ed in NGC 5303 . This page is devoted to information on Supernova 2003ed in NGC 5303 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the updates and links web pages. ... The host galaxy was identified in CBET 14 as "NGC 5303A" which NED identifies as "NGC 5303". ... vsnet-campaign-sn 617 ] SN II 2003ed in NGC 5303(A) . ...

... 2009 July 9 . Fermi's Gamma-ray Pulsars . NASA , DOE , Fermi LAT Collaboration . ... Traditionally identified and studied by observing their regular radio pulsations , two dozen pulsars have now been detected at extreme gamma-ray energies by the Fermi Gamma-ray Space Telescope . ... This gamma-ray all-sky map, aligned with the plane of our Milky Way Galaxy, shows the pulsar positions, with the 16 new Fermi pulsars circled in yellow (8 previously known radio pulsars are in magenta). ...

Microsymposium 38, MS067, 2003 (A4 format) SURVEY OF MARS CRATER TOPOGRAPHY FROM MOLA DATA. Michael G. G., European Space Agency, Research and Scientific Support Department, ESA/ESTEC, Noordwijk, The Netherlands, greg.michael@esa.int An algorithm for autonomous identification of crater centres from topography data has been improved in accuracy since [1,2] by taking account of the slope direction on the interior of the crater rim. ... References: [1] Michael G. G. (2002) Vernadsky-Brown 36, abs. ...

... As a result of the BTA spectroscopy of a faint optical source (R=23), earlier identified at the BTA with a compact ( RC J0311+0507 from the sample of objects with ultra-steep radio spectra (RATAN-600), a radio galaxy with a strong narrow emission line, the most likely identification of which is the Lyman-alpha hydrogen at redshift of z=4.514. This is the second radio galaxy, discovered at a redshift of more than 4.5 - a real candidate for the most powerful radio objects of the Early Universe. ...

OPTICAL IDENTIFICATIONS OF INTEGRAL / RXTE SOURCES WITH 1.5-METER OPTICAL TELESCOPE RTT150 I.Bikmaev (1,2), M.Revnivtsev (3,4) , R.Burenin (3) R.Sunyaev (3,4) , N.Sakhibullin (1,2) (1) Kazan State University, Kremlevskaya Str., ... 1, D-85741, Garching bei MЭnchen , Germany (3 (4) ABSTRACT We present the first results of our project on optical identifications of INTEGRAL / RXTE hard X-ray sources by using scientific instrumentations of the 1.5meter joint Russian-Turkish optical telescope RTT150. ...

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FLAMES multiobject spectroscopy of low mass stars in the "twin" young clusters Ori andOri 1,2 1 3 G.G. Sacco , R. Pallavicini , S. Randich , 1 3 E. Franciosini , F. Palla 1 INAF Osservatorio Astronomico di Palermo, Italy 2DSFA UniversitЮ di Palermo, Italy 3 INAF ­Osservatorio Astrofisico di Arcetri, Italy ABSTRACT Using FLAMES on VLT/UT2, we obtained spectra of 147 lowmass candidate members of the two young (~5 Myr) and coeval clusters Ori and Ori. ... Results: In Ori we identified 65 members. ...