... An occultation of the active galaxy 3C 273 by the Moon was recorded on May 31, 2001, at the Calar Alto Observatory's 3.5m telescope using the Omega-Cass camera. ... At that time, radioastronomy had the disadvantage of having very poor angular resolution, and it was only thanks to such an occultation (measured in the radio domain), that it was possible to reduce the uncertainty on the position of 3C 273 from several arcminutes to few arcseconds. ...

The starting page - The catalogues page - The list of the PUL2 fields - The list of the Pul-3(Pul-3SE) fields - The list of the PUL_ERS fields . please read short description of the access form controls . ... Relative proper motion in RA *cos(DE), arcsec/yr . ... s. e. relative proper motion in RA *cos(DE), arcsec/yr . ... Number of Pul2 area . ... Check the apropriate checkbox to output these data and radiobutton to select stars within interval. back to the list of the Pul2 fields . ...

... Research . ... A rare hybrid morphology radio galaxy . ... In this project we will be able to investigate the environmental effect on star formation and galaxy evolution in individual galaxies falling into the cluster through radio observations of active galactic nuclei (AGN). Current models of galaxy evolution regulate the star formation rates within the simulated galaxies by invoking radio-mode feedback from AGN. ... Julie.Banfield@anu.edu.au . ...

... see also updeted version 1993 A catalog of 935 galaxies which have optical properties similar to those of QSOs is given. ... The majority, more than 700, have redshifts z = 0.2 or less, and have mostly been classified as Seyfert galaxies, N systems, or radio galaxies. ... 297Hewitt Burbidge; Optical Catalogue of Jdir Extragalactic Emission-Line Objects similar to Quasars Comment: position, line characteristics, cross-ID for 935 objects 3 Files: 3605x80, 343x132, 343x132 = 273 kb (ctsy.A.Hewitt) ...

... I. D. Karachentsev, E. I. Kaisina, and D. I. Makarov, Suites of dwarfs around nearby giant galaxies, AJ, 2014, 147, 13 (2014AJ.. ... Table 1. ... I. D. Karachentsev and E. I. Kaisina, Star formation properties in the Local Volume galaxies via H and FUV fluxes, AJ, 2013, 146, 46 (2013AJ.. ... Figure 1. ... List of the nearby galaxies with measured SFR . I. D. Karachentsev, D. I. Makarov, and E. I. Kaisina, Updated Nearby Galaxy Catalog, AJ, 2013, 145, 101 (2013AJ.. ... Catalog of Nearby Galaxies . ...

... The search for distant objects which can be both galaxies and quasars is one of the most important problems of observational astrphysics, because it allows one to determine cosmological parameters connected with the time of appearence and evolution of stellar systems, large scale structure of the Universe. ... Radio galaxies are important objects to be studied because they are sources of infrared-optical-ultraviolet continuum, emission lines and continual radio emission. ...

... Each is linked to 3-6 detailed files, telling a more complete story, and those in turn may have other links, including history sections which tell about the related history. ... Each is linked to either the next item in sequence, or else to the related historical overview. ... You can also link here to a self-contained overview of the early history of magnetism...note that links to all files are given in their proper order on the home page, linked here and also at the end of any "Exploration" file. ...

... lcplot (lcplot-1.19.1) [xmmsas_20080701_1801-8.0.0] . ... We note that no RGS Source Time Series FITS file is specified in [ 1 ]. ... Time intervals all have the same length, the first one is TSTART , TSTART + Binsize*TIMEDEL where TIMEDEL is the bin width read from the file [ 1 ]. ... We have assumed it to be given in seconds. ... The mean, variance, Chi Square, etc are provided with six significant digits. ... The output devices are those of the PGPLOT library. ...

The oral histories on this Website are the transcripts from audio-recorded, personal interviews with many who pioneered outer space and the Moon, and with those who continue the excitement of space exploration. ... The date of each interview is noted on the first page. If available, the Biographical Data Sheet provided background information for the Oral Historian to prepare for the interview. ... Michael E. Read Oral History Interviews . ... Return to JSC Oral History Website . ...

... Malkov, O. M. Smirnov . ... We present some current and future variations of our Guide Star Catalog Data Retrieval Software (GUIDARES). ... The GUIDARES software was born in 1991 (Malkov et al. 1992) as a PC-based tool for easy access to the Guide Star Catalog. ... Several applications arose (e.g., Malkov & Smirnov 1994b) where it was very useful for a program to be able to read the Guide Star Catalog easily, without the burden of sorting through its (very complicated) internal structure. ...