. IAAT . XMM-Newton . three observations so far: • rev.40 with thick filter, ?E ? 50 keV • rev.90 with thin filter, ?E ? 25 keV • rev.90 in closed position into radiation belts . low gain: gain of CAMEX is reduced by factor of 20 ? spectral range for particles: 2 - 300 keV . Next slide . Back to first slide . View graphic version .

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• Low gain observations with EPIC pn-CCD on XMM-Newton Eckhard Kendziorra 01.12...

WFPC2 . Images: version1 , version2 . Catalogs: Version 1 HDF-S , HDF-N ;Version 2 HDF-S . STIS . ... NICMOS . Images: Camera 3 , V2 of psf-convolved STIS 50CCD on NICMOS . ... Images: WFPC2 FF , STIS FF ; Version2: WFPC2 FF , STIS FF , NICMOS FF . Catalogs: Version2 WFPC2 FF , STIS FF , NICMOS FF . ... Check the instrument specific technical pages for a description of the data products and the implemented data reduction steps: STIS , WFPC2 , NICMOS , Flanking Fields . ...

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• GOODS: The Great Observatories Origins Deep Survey
• HST Primer for Cycle 22
• LABOCA observations of giant molecular clouds in the southwest region of the

We report first results of a multifrequency campaign from radio to hard X-ray energies of the prominent gamma-ray blazar 3C 279 during the first year of the INTEGRAL mission. The variable blazar was found at a low activity level, but was detected by all participating instruments. Subsequently a multifrequency spectrum could be compiled. ... In addition, this 2003 broadband spectrum is compared to one measured in 1999 during a high activity period of 3C 279. | ...

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• Archive of VLBI Observations Majordomo List
• immerge
• PPTA Wiki | Observing / Details

A computer controlled low light photometer for nightglow observations. Hardware units of portable photometer for low light measurements, especially night glow emission is described. ... Interface card contain three channels of 24 bit counter, 4 channels of 12 bit ADC and the buffer bus for the controlled motors of the altazimuthal fork mounting and filters wheel, the position encoders. ... Where N( ) is output signal photometer generated input light flux F( l ) . ... PMT # . 599 . ...

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In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

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• Astro-2 and the UIT Experiment

... The dayside auroral precipitation consist of magnetosheath related boundary layer precipitation, and plasma sheet related BPS/CPS precipitation (extensions of the nightside precipitation regions). ... For example, the much lower fluxes from the LLBL region when compared to the cusp are compensated by the bidirectional electron beams found in the LLBL: the precipitating energy fluxes in the LLBL and the cusp are not that different. ... directly through the cusp and plasma mantle . ...

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• Low latitude aurorae [Oulu)
• Field-aligned potential drops [Oulu]
• Boundary layer [Oulu]

... A1972 Date Received: 2004-Jun-01 13:53:14 Technical Page Proposal Type: Regular General Category : Astronomy Sub- Category : Spectroscopy Observation Category : Extragalactic Total Time Requested: 33 Hours Proposal Title: A Search for Massive Low Surface Brightness Galaxies ABSTRACT: Gaining a rm understanding of Low Surface Brightness ( Observations show increasingly that the `traditional' view of LSB galaxies as low mass, blue young dwarf-like systems is actually incorrect. ...

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• http://www.naic.edu/vscience/schedule/tpfiles/GehatagA2751tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/BradfordtagA2850tp.pdf
• http://www.naic.edu/vscience/schedule/tpfiles/GehatagA2751tp.ps

Our publications in 2002 year Kniazev, A. Y.; Grebel, E. K.; Pustilnik, S. A.; Pramskij, A. G. American Astronomical Society, 201st AAS Meeting, #52.23; Bulletin of the American Astronomical Society, Vol. 34, p.1195 (12/2002) . ... N.; Pustilnik, S. A.; Kniazev, A. Y.; Elmegreen, B. G.; Larsen, S. S.; Alfaro, E. J.; Hodge, P. W.; Pramsky, A. G.; Richtler, T. Astronomy and Astrophysics, v.389, p.855-870 (07/2002) . ... 253-253 (02/2002) . ... 24P (01/2002) . ...

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• A 20 cm VLA survey of Abell clusters of galaxies
• "Structure" publications in 1999 year
• IPCS observations and data reduction

... Let us first find out which way -- rise in spectral resolution with some loss in the S/N ratio or increase in the S/N ratio with a fixed spectral resolution -- is better for the purpose of reduction of equivalent width determination errors. ... N -- number of counts for 1 ? ... line equivalent width, . ... Thus if the spectral resolution is managed to be increased (i.e. to decrease )without loss in the number of counts falling at 1 ?, the equivalent width measurement error is then proportional to . ...

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• On the problem of high spectral resolution observations of faint objects
• SCORPIO-2 project: long-slit
• Complex RC

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

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• Observations - Page 2

... The Sun has come all of one day away from breaking its record for the longest period of inactivity for the last decade - reaching a mid-summer low and falling into yet another state of "hibernation". Yesterday, on the first day of autumn, new sunspots appeared on the surface of the Sun following an absence of almost 50 days. ... The first low lasted 51 days, from 21 July until 11 September last year. ... Now, almost a year later, it seems the Sun has hit a new low almost as "deep" as the first. ...

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• TESIS - Telescopes for EUV Spectral Imaging of the Sun

Space debris ranging observations with Irbene RT-32 telescope . I. Shmeld, M. Abele, D. Bezrukov, V. Bezrukov, N. Jekabsons, M. Nechaeva, G. Ozolins . Ventspils International Radio Astronomy Center, Ventspils, Latvia Abstract: . Since 2007 VLBI Space Debris ranging is one of on-going activities in Ventspils International Radioastronomy Centre (VIRAC). ... space debris, radio position, ranging observations. ...

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• (Untitled)
• Keywords_44
• Values of asteroid masses

... Flux density at 1 GHz (/Jy): 25 . ... 1972, ApJS, 24, 49. ... ADS . ... NRAO 140-ft at 10.6 GHz (3'). ... Einstein observations. ... VLA at 1.4 GHz (6''), including possible associated CO. ... 1996, AJ, 111, 1651. ... 1996, ApJ, 458, 257. ... Reach & Rho 1996, A&A, 315, L277. ... Rho & Petre 1996, ApJ, 467, 698. ROSAT observations. ... Reach & Rho 1998, ApJ, 507, L93. ... Reach & Rho 1999, ApJ, 511, 836. ... Reach & Rho 2000, ApJ, 544, 843. ... also see: Reach & Rho 2001, ApJ, 558, 943. ...

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• G27.4+0.0
• Astrophysics Group CLFST
• The 7C(G) survey

... Science . ... Science Users Information > Science and Technical Meetings > Conferences 2011 > Very Low Mass Stars and Brown Dwarfs . ... Observing Facilities . ... Observing with ESO Telescopes . ... ESO Data . ... This workshop will review the current progress in our understanding of low mass star and brown dwarf formation in nearby molecular clouds, and will bring together observers and theoreticians to promote an energizing discussion. ... Surveys for young very low mass stars and brown dwarfs . ...

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• ESO - Stellar End Products: The Low Mass - High Mass Connection
• ESO - La Silla Science Operations
• ALFA Ultra Deep Survey (AUDS)

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Observations Support Laboratory BTA
• Ratan-600 observation schedule
• Observations Support BTA

Astronomy Discussion Forums . ... Great Night 10/24 . ... Post Message | ... Temp in the mid to low 40's, slight wind, pretty clear. ... Very good view of the Double Cluster. ... Normally the best contrast is achieved with the 32mm or 25mm ep. ... This cluster was lower to the horizon and thus now quite as clear as the Double Cluster. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• Observations Of Mars - an Astronomy Net Observation_reports Forum Message
• Observation Report From Coyle 07/19/03 - an Astronomy Net Observation_reports
• What Was It? - an Astronomy Net Observation_reports Forum Message

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

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• Low-Mass Star Formation
• Armagh Observatory
• First CCD Observations of Asteroids from Armagh

. Comment on J0238+1636 . Our data show that in June 1996 the source had an unusually low flux density with an angular size of 0.6". The source is usually highly variable, strong and extremely compact. However, Chen, Zhang & Sjouwerman (1999) also claim the source was resolved with EVN observations at 5 GHz about 8 months after our observation when the flux density was still unusually low. VLBApls home page . Last modified: 16 Oct 2000

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• VSOP Symposium Proceedings

The magnetar 1E 2259+586 shines a brilliant blue-white in this false-color X-ray image of the CTB 109 supernova remnant, which lies about 10,000 light-years away toward the constellation Cassiopeia. CTB 109 is only one of three supernova remnants in our galaxy known to harbor a magnetar. X-rays at low, medium and high energies are respectively shown in red, green, and blue in this image created from observations acquired by the European Space Agency's XMM-Newton satellite in 2002. ...

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BEECD5A98-36E5-45CB-B02E-0B0A5BA7FAEF%7D
• First LOFAR observations of the Whirlpool Galaxy | Astronomy.com

Smithsonian Astrophysical Observatory | Center for Astrophysics | XRB SED Home | . RXTE Light Curves (And tables of SED observation times where available): . 4U0614+091 . 0748-676 (UY Vol) . 1254-69 (GR Mus) . Scorpius X-1 . Hercules X-1/HZ Herculis . Serpens X-1 (MM Ser) . Cyg X-2 . Cen X-4 . J1556-605 . X1603.6+2600 . X1636-53 . X1658-298 . SEDs: . 4U0614+091 . Scorpius X-1 . Hercules X-1/HZ Herculis . Serpens X-1 (MM Ser) . 4U1735-444 . GX9+9 . GX17+2 . GX349+2 . 4U1636-536 . 4U1254-690 . EXO0748-676 .

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• Filtering ROSAT HRI data on the basis of background level
• Period Analysis
• The Diffuse X-Ray Background