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На этой странице приведены все страницы сервера hea-www.harvard.edu ,которые мы индексируем. Показаны документы 7481 - 7500 из 7508.

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7481. http://hea-www.harvard.edu/QEDT/Papers/nlxg1.ps
... ABSTRACT We report on the first results obtained from a new optical identification program of 123 faint X­ray sources with S(0.5--2 keV) ? 2 2 10 014 erg s 01 cm 02 serendipitously detected in ROSAT PSPC pointed observations. ... This evolution, coupled with the steep slope determined for the faint end of the X­ray luminosity function (8(LX ) / L 01:9 X ), implies that such objects could comprise 15--35 per cent of the soft (1­2 keV) X­ray background. ... 2 2 10 014 erg s 01 cm 02 . ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/nlxg1.ps -- 742.8 Кб -- 05.01.1996
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7482. http://hea-www.harvard.edu/~pgreen/figs/cdwarfs2.ps
DILEMMA OF THE DEVIOUS DWARFS Prize Winning Entry 1993 Hughes/Griffith Observer Writing Contest Paul J. Green A scheme to weigh the Galaxy by tracing the orbital motion of distant stars was foiled recently by a number of dwarfs masquerading as giants. ... The Dark Matter Main sequence stars, red giants, white dwarfs ­ these are three among the many types of stars that populate a galaxy. ... When we started this project, everyone agreed that `carbon stars' were always giant stars. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/~pgreen/figs/cdwarfs2.ps -- 62.1 Кб -- 22.11.1995
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7483. http://hea-www.harvard.edu/QEDT/sm_topical_commands.txt
... LINES sets use of lines INTEGER1 to INTEGER2 from the current data file READ reads column INTEGER of data file to vector WORD ------------------------------------------------------------------------ Reading user macros into current SM MACRO READ name read macro `name' into SM. ... Defining variables SET name = expr sets the vector "name" to be equal to "expr" DEFINE name value defines variables. accessed by $name VARIABLE see DEFINE for how to define and use variables. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/sm_topical_commands.txt -- 13.7 Кб -- 26.10.1995
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7484. http://hea-www.harvard.edu/QEDT/Science_guide/mission_SAX_news.txt
... Latest news from the SAX project ---------------------------------------------------------------------------- * New versions of the MECS response matrix and effective area are available from the SAX anonymous ftp sites. www.sdc.asi.it iasax1.ias.fra.cnr.it tesre.bo.cnr.it * System Verification tests (SVT) have been completed successfully on Sept 12 1995 *************************************************************************** ** SAX Fabrizio ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/mission_SAX_news.txt -- 2.8 Кб -- 06.10.1995
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7485. http://hea-www.harvard.edu/QEDT/Papers/ngc4258_apjl.ps
... Therefore, in this galaxy, the optical emission­line spectrum generally exhibited by an active galactic nucleus is perhaps best sought using polarized light: probing for light scattered off material surrounding the central source. New polarimetry of NGC 4258 has uncovered a compact polarized nucleus whose spectrum consists of a faint blue continuum similar to those of unobscured quasars (F љ / љ \Gamma1:1 ), plus broadened (ё1000 km s \Gamma1 ) emission lines. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/ngc4258_apjl.ps -- 313.4 Кб -- 03.10.1995
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7486. http://hea-www.harvard.edu/QEDT/Papers/gb1508.ps
GB1508+5714, the First z?4 Radio Selected Quasar in X­rays Smita Mathur and Martin Elvis Harvard­Smithsonian Center for Astrophysics 60 Garden St, Cambridge MA 02138 Internet: smita@cfa.harvard.edu To Appear in The Astronomical Journal -- 2 -- ABSTRACT We report the detection in X­ray of a high redshift (z=4.30) radio­loud quasar, GB1508+5714, the first radio­selected z?4 quasar seen in X­rays. ... Intrinsic absorption would make GB1508+5714 similar to a large fraction of zё3 radio­loud quasars. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/gb1508.ps -- 109.4 Кб -- 03.10.1995
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7487. http://hea-www.harvard.edu/QEDT/Papers/phl5200.ps
Strong X­ray Absorption in a BALQSO: PHL5200 Smita Mathur 1 , Martin Elvis 1 and K. P. Singh 2;3 1. ... Internet: smita@cfa.harvard.edu October 3, 1995 Abstract We present ASCA observations of the z=1.98 prototype BALQSO: PHL5200. ... A power­law spectrum (ff E = 0:6 +0:9 \Gamma0:6 ) with large intrinsic absorption (NH = 1:3 +2:3 \Gamma1:1 \Theta 10 23 cm \Gamma2 ) best de­ scribes the spectrum. Excess column density over the local Galactic value is required at the 99% confidence level. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/phl5200.ps -- 157.4 Кб -- 03.10.1995
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7488. http://hea-www.harvard.edu/QEDT/Science_guide/caldb_news.txt
Tue Sep 26 18:15:26 EDT 1995 * New ASCA XRT Effective Area dataset available (from Nagoya ray-tracing) ************************************************************************ From: Ian M George, Code ... 668, NASA/GSFC, USA (Usque ad mortem bibendum) GEORGE@LHEAVX.GSFC.NASA.GOV To: aldcroft@garth.harvard.edu Subject: New ASCA XRT Effective Area dataset ... Please look under "GIS News".] ... The README files in /data/caldb/ directories contain useful information. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/caldb_news.txt -- 16.0 Кб -- 26.09.1995
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7489. http://hea-www.harvard.edu/QEDT/Papers/ewol.ps
EVOLUTION OF AN ACCRETION DISK IN AGN Aneta Siemiginowska 1;2 , Bo—zena Czerny 2 & Vadim Kostyunin 3 1 Harvard -- Smithsonian Center for Astrophysics, 60 Garden St. M/S 4, Cambridge, MA 02138 2 Copernicus Astronomical Center,Bartycka 18, 00­716 Warsaw, Poland 3 Institute of Astronomy, Russian Academy of Sciences, 48 Pyatnitskaya St, Moscow 109017, Russia August 28, 1995 Abstract We present results of the modeling of thermal­viscous ionization instabilities in accretion disks in AGN. ... ff hot disks. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/ewol.ps -- 826.4 Кб -- 28.08.1995
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7490. http://hea-www.harvard.edu/QEDT/Papers/lbqs.ps
THE SOFT X­RAY PROPERTIES OF A LARGE OPTICAL QSO SAMPLE: ROSAT OBSERVATIONS OF THE LARGE BRIGHT QUASAR SURVEY Paul J. Green 1;2 , Norbert Schartel 3 , Scott F. Anderson 4 , Paul C. Hewett 5 , Craig B. Foltz 6 Wolfgang Brinkmann 3 , Henner Fink 3 , Joachim TrЁumper 3 , and Bruce Margon 4 Received October 20, 1994; accepted March 14, 1995 1 Harvard­Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 2 Hubble Fellow 3 Max Planck Institut fЁur extraterrestrische Physik, Giessenbachstr. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/lbqs.ps -- 195.2 Кб -- 11.08.1995
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7491. http://hea-www.harvard.edu/QEDT/Papers/ngc5548.ps
Testing Unified X­ray/UV Absorber Models with NGC5548 Smita Mathur, Martin Elvis and Belinda Wilkes Harvard­Smithsonian Center for Astrophysics 60 Garden St, Cambridge MA 02138 Internet: smita@cfa.harvard.edu June 1, 1995 Abstract The bright Seyfert galaxy NGC5548 shows absorption features in its X­ray and UV spectra. ... U !2.8) high column density (NH = 3:8 \Theta 10 21 cm \Gamma2 ) gas situated outside the CIV emitting region (2 \Theta 10 16 ! ... 2 \Theta 10 18 cm). ... 5 \Theta 10 9 cm \Gamma3 . ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/ngc5548.ps -- 365.1 Кб -- 01.06.1995
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7492. http://hea-www.harvard.edu/QEDT/Science_guide/ftools_news.txt
... The ROSAT support is more robust. ... I will install the new version in IRAF (setiraf) in one week if there are no objections; until then, IRAF is running FTOOLS 3.0. To access the FTOOLS 3.2 host version : Add appropriate path - set path = ($path / iraf / irafext2 / ftools /bin.host) Make directories, if they don't already exist - mkdir ~/myftools ~/myftools/pfiles ~/myftools/ data Set environment variables - setenv LOCPFILES ~/myftools/pfiles setenv SYSPFILES / iraf / irafext2 / ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/ftools_news.txt -- 12.1 Кб -- 17.05.1995
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7493. http://hea-www.harvard.edu/QEDT/Science_guide/mission_XTE_news.txt
Sender: xtenews @ascasrv.gsfc.nasa.gov Precedence: bulk From: Alan Smale alan@osiris.gsfc.nasa.gov To: Multiple recipients of list xtenews @ascasrv.gsfc.nasa.gov Subject: XTENEWS #5: XTE telemetry , and other frequently-asked questions X-Listprocessor-Version: 6.0c -- ListProcessor by Anastasios Kotsikonas ------------------------------------------------------------------ XTE telemetry , and other frequently-asked ... These matrices now use a common offset and energy scale. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/mission_XTE_news.txt -- 10.9 Кб -- 26.04.1995
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7494. http://hea-www.harvard.edu/QEDT/Papers/pg1407.ps
THE UNUSUAL QUASAR PG1407+265 Jonathan C. McDowell 1 , Claude Canizares 3 , Martin Elvis 1 , Andrew Lawrence 2 , Sera Markoff 3;4 , Smita Mathur 1 , Belinda J. Wilkes 1 Astrophysical Journal, 1995 Sep 10, in press ABSTRACT PG1407+265, discovered in the Palomar­Green Survey (Schmidt and Green 1983), was identified as a redshift one radio­quiet quasar on the basis of a single weak line. ... Line absorption: PG1407+265 is a weak BAL quasar in which the absorption lines are eating away at the emission. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/pg1407.ps -- 527.6 Кб -- 07.04.1995
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7495. http://hea-www.harvard.edu/QEDT/Papers/color-color.ps
TESTING MODELS FOR THE QUASAR BIG BLUE BUMP VIA COLOR­COLOR DIAGRAMS. ... We describe the colors for several models: accretion disk models in Schwarzschild and Kerr geometries, single temperature optically thin emission, com­ bination of the main emission model and non­thermal power law or dust, irradiation of the disk surface. ... VIS/UV1/UV2 color diagram. ... UV1/UV2 colors for two component model: accretion disk with non­thermal power law and free­free model with non­thermal power law. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/QEDT/Papers/color-color.ps -- 787.9 Кб -- 04.04.1995
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7496. http://hea-www.harvard.edu/QEDT/Science_guide/xanadu_news.txt
... TLA 16-Mar-95 ************************************************************************* From: aldcroft@garth.harvard.edu (Tom Aldcroft) Message-Id: <9501031718.AA27761@garth.harvard.edu> To: xanusers@garth.harvard.edu Subject: Xanadu 8.50 to become default Date: Tue, 03 Jan 95 12:18:41 EST Although Xanadu v.8.50 has been installed for quite some time, I just noticed that the default version is still v.8.41 (as defined by the soft link /soft/xan/xanadu -> /soft/xan/xanadu-8.41/). ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/xanadu_news.txt -- 2.5 Кб -- 16.03.1995
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7497. http://hea-www.harvard.edu/QEDT/Science_guide/asca_news.txt
Koji Mukai, US ASCA GOF, (301) 286-9447 MUKAI@lheavx.gsfc.nasa.gov To: aldcroft@garth.harvard.edu Subject: Calibration Status of 4- and 2-CCD mode data X-Listprocessor-Version: 6.0c -- ListProcessor by Anastasios Kotsikonas Calibration Status of 4-CCD Mode Data ===================================== The SIS team is continuing to improve the spectral ... A study of the Ni line (in the detector background) shows, however, that the secular gain change is dependent on CCD mode. ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/asca_news.txt -- 4.8 Кб -- 05.03.1995
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7498. http://hea-www.harvard.edu/QEDT/Science_guide/xstar_news.txt
From: shaks@cfa237.harvard.edu (Jonathan Schachter) Message-Id: 9502271808.AA14619@cfa237.harvard.edu To: scientists@cfa237.harvard.edu Cc: msgs@cfa237.harvard.edu, students@cfa237.harvard.edu, postdocs@cfa237.harvard.edu Subject: xstar ( photoionization code ) Date: Mon, 27 Feb 95 13:08:02 EST i've installed XSTAR (version 1.09 ), a photoionization code written by Kallman and Krolik, in /proj/oscar/ ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/xstar_news.txt -- 2.0 Кб -- 28.02.1995
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7499. http://hea-www.harvard.edu/QEDT/Science_guide/miriad_news.txt
... Usually, the data are flagged in AIPS, and then imported into MIRIAD. Unlike AIPS , MIRIAD has some important user friendly features: o direct, seamless access to a unix shell o data formats --- real disk files which can be archived with UNIX tar (instead of relatively bizarre-ly named VMS files in AIPS ) o data analysis via shell scripts, freely mixing shell commands and miriad commands o command line editing and history (much like the T- ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/QEDT/Science_guide/miriad_news.txt -- 4.9 Кб -- 22.02.1995
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7500. http://hea-www.harvard.edu/RD/PostScript/ora.ps
Page 1 The X Public Access Mechanism Software Cooperation For Space Science And Beyond Eric Mandel + Ralph Swick Doug Tody Abstract We describe a simple and effective use of the X Toolkit (Xt) selection mechanism that allows an Xt program to define named public access points through which data and commands can be exchanged with other programs. ... We also describe our application of the X Public Access (XPA) mechanism to a new version of the popular SAOimage astronomical image display program. ...
[ Текст ]  Ссылки http://hea-www.harvard.edu/RD/PostScript/ora.ps -- 1520.6 Кб -- 19.12.1994
[ Текст ]  Ссылки http://hea-www.harvard.edu/saord/PostScript/ora.ps -- 1520.6 Кб -- 19.12.1994
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