... Dusty Galaxy Centaurus A . ... 30.03.1997 . ... Credit: NOAO , Cerro Tololo Interamerican Observatory Explanation: One of the most unusual galaxies known , Centaurus A , is pictured above. Cen A is marked by dramatic dust lanes that run across the galaxy's center. These dust lanes are so thick they almost completely obscure the galaxy's center in visible light. ... Publications with keywords: Centaurus A . ... Active Galaxy Centaurus A . ... Centaurus A: X-Rays from an Active Galaxy . ...

. Assumed Source Spectra (2-10 keV): . Normal AGN: a x = 0.5, N H = 3 10 20 cm -2 . Absorbed AGN: a x = 0.5, N H = 3 10 23 cm -2 . An explanation of and further information on these predictions can be found here . Sky Area vs. flux limit (0.5 - 3.5 keV) . Sky Area vs. flux limit (2 - 10 keV) . Home | Science Goals | Survey Strategy | Publications | Images & Data | Education/Outreach | Internal Page (password access only) . Date Last Modified: 22 April 2002 . Contact: Webmaster .

... Telescopes . ... 1995: . ... This sample proved to be the deepest one of all the analogous samples by the highest redshift estimates. ... More than 70% of dwarf galaxies from the sample were resolved into stars. ... Based on the results of optical and radio observations of a sample of 100 blue dwarf compact galaxies with the telescopes in the SAO RAS, France and USA the estimates of a total dynamic mass and the ratio of dark halo mass to the mass of the whole luminous matter were obtained. ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

... Previous: Substepping and its Application to HST Imaging . ... This is a preliminary report on an application of the co-addition technique based upon the Richardson-Lucy algorithm. The combination of high signal-to-noise ground-based images obtained with the ESO NTT using SUSI with high angular resolution HST FOC f/96 images gives new insights on the properties of galaxy cores and their potential time variability. Cores of galaxies are one of the main thrusts of present extragalactic research. ...

... In the currently favored cosmology, CDM, the formation of dark matter structures can be simply understood as interactions solely through gravitational forces: small dark matter haloes form first and then merge together to build up larger ones. ... It is believed that such a process could be the feedback from the Active Galactic Nucleus (AGN; a BH accreting matter and radiating with large luminosities, LAGN 109 - 1015 L ) onto the host galaxy. ...

Date: Thu, 12 Apr 2007 18:15:45 +0200 (MEST) From: Alessandro Marconi <marconi@arcetri.astro.it> To: boch@sai.msu.ru Subject: Summer school on AGNs and VLTI Dear Colleague, here is the first announcement and call for applications for a VLTI summer school on "Active Galactic Nuclei at the highest angular resolution: theory and   observations". ... It is supported by 15 EU member states, including new member states, and thus integrates the entire European optical interferometry community. ...

. My research areas are Seyfert galaxies: . problems of AGN fueling . role of galaxies interaction in AGN triggering . panoramic spectroscopy in application to galaxies with active nuclei . My PhD thesis "Investigation of Seyfert galaxies in different stages of interaction" . Download the zip PS-file (on Russian only) . BACK to My Home Page