... Discovery of enrichment of the envelopes of post-AGB stars with heavy metals . As a result of monitoring carried out at the BTA telescope, a new phenomenon was discovered in the optical spectra of post-AGB supergiants with an emission at 21 ?m and an overabundance of carbon and heavy metals in the atmospheres - the splitting of the strongest absorption lines. ... Thus, we discovered for the first time the enrichment of the stellar envelope with heavy metals synthesized by the s-process. ...

Detected Supernovae . The search have produced till now the detections of 4 SNe. ... This result highlights the power of infrared monitoring in detecting Obscured SNe and indicates that optical surveys are probably missing a significant fraction of SNe, especially in obscured systems such as starburst galaxies. ... In Fig. we show the archival SOFI image of NGC3256 (left) and the first image obtained in 2001 (right) where SN2001db has been detected. ...

Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . 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. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

... Master . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... 20.06.2012 . ... 27 Apr 2012: GRB 120427A: MASTER follow up observations GCN13274 . ... 29 Mar 2012: MASTER OT 123412-632503 detection during Swift trigger 518853 ATel4007 . 26 Mar 2012: GRB 120323A: MASTER follow up observations GCN13116 . ... 29 Jan 2012: GRB 120129A: MASTER optical observations GCN12907 . 06 Jan 2012: GRB 120106A: MASTER Early OT marginally detection GCN12818, GCN12811 . ...

Peremennye Zvezdy ( Variable Stars ) 28 , No. ... I present the discovery of a pulsating component in light variations of the known eclipsing binary NSV 10993 based on the NSVS and ASAS-3 publicly available data. ... I re-analysed the NSVS and ASAS-3 data (NSVS 10974803, NSVS 11094130, and ASAS 183213+1217.1) using the WINEFK package by Dr. V.P. Goranskij and found pulsations superposing the eclipsing light curve. ... The eclipsing light curve is similar to the EB-type curves. ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

... 2014 July 21 . Spacecraft Rosetta Shows Comet has Two Components . Image Credit: ESA / Rosetta /MPS for OSIRIS Team ; MPS /UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA . Explanation: Why does this comet's nucleus have two components? The surprising discovery that Comet 67P/Churyumov–Gerasimenko has a double nucleus came late last week as ESA 's robotic interplanetary spacecraft Rosetta continued its approach toward the ancient comet's core. ... About APOD | ...

... The jets can also be produced in smaller scale by binary stellar systems. ... Some 200 -- 250 X-ray binaries, systems in which a neutron star or black hole is accreting material from a companion star, are known. Approximately 20% of these sources have been detected at radio wavelengths, and in several cases high resolution radio observations have resolved this emission into jet-like structures, sometimes with components moving at relativistic velocities. ... It is variable radio source. ...

Radio pulsars strictly periodic signals 14.03.2016 B 10 G;E 10 V / cm 12 10 2 Individual pulses and average profile of pulsar 14.03.2016 3 Average profiles of pulsars 14.03.2016 average energy distribution of pulses by phase of period. ... 14.03.2016 5 2695 Giant pulses (GPs) of pulsar Intensity, a.u. Time, ms Pulses that exceed the average profile over 30 times were called giant pulses. ... 2005) 14.03.2016 8 Individual pulses energy distribution 1937+21. ...

... 1.4 Completed WF/PC-2 8592 (Pixel Microlensing of M87) The WF/PC-2 was used to undertake a pixel microlensing study of M87 in order to: 1} probe the lower end of the M87 IMF via star-star lensing, 2} possibly obtain the first evidence of Massive Compact Objects (MACHOs) in the halo of a galaxy other than our own, and 3} search for intracluster MACHOs. ... They are also the only sample of galaxies selected on the basis of their mass rather than their luminosity or surface brightness. ...

Image credit: Michael Nolan, Arecibo Observatory. These radar images of near-Earth asteroid 2001 SN263 were obtained on 2008 Feb 12 and 13. ... Image from Feb 12 . ... First near-Earth triple asteroid discovered by Arecibo Observatory . ... was discovered this week by astronomers at the sensitive radar telescope at Cornell University?s Arecibo Observatory in Puerto Rico. ... For example, Arecibo has discovered more than half of the near-Earth binary asteroid systems discovered since 1999. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Lightcurve of HW Vir from images obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory . The blue triangles show the difference between two stars whose brightness is constant. ... This shows the value of the Faulkes Telescopes in the follow-up observations of eclipsing binaries with the aim to detect and characterise additional circumbinary companions. ...

... Director of the RAS ISR . RAS Academician . ... Astrophysics module Kvant of the orbital complex Mir launched in 1987 contains the largest on the station complex of the scientific equipment named the orbital observatory Roentgen. Observatory Roentgen consists of 4 X-ray telescopes, jointly exceeding the range of energies from 2 to 800 keV. ... Among the most significant results that were received in the observatory Roentgen are: . ... measurement of the periods of 9 X-ray pulsars; . ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope 20GHz Survey . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ... Background and first results from the new AAO/UKST H survey . ...

Supernova Surveys Bruno Leibundgut ESO One-slide SN 1987A · KjФr et al. (arXiv:1003.5684) ­ inner ejecta resolved and mapped in [Si I] and [Fe II] as well as He I lines Some past supernova surveys · Historical surveys ­ Zwicky/Caltech/Palomar/POSS · first systematic searches with the 18 Schmidt · only provider of SNe for a long time · spawned from the Caltech ... 2003 Distant SN surveys · CFHT SN Legacy Survey ­ CFHT+MegaCam · 4 filters, six years, rolling search all year ­ Astier et al. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

Next: Observational Zoo of Binaries Up: No Title Previous: Contents . In the early 1980s, our understanding of binary star evolution љ based on the pioneer work by Paczynski (1971)[ 150 ], Tutukov and Yungelson (1973)[ 195 ], van den Heuvel and Heise (1972)[ 201 ], allowed us to construct a general evolutionary scenario љ which successfully explained the genesis of well-studied normal stars and offered potential explanation for new X-ray sources discovered in space experiments. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Sun . ... There could be an eighth planet to discover! ... The orbits of the planets could be predicted perfectly- apart from Mercuryт??s. Planetary orbits are not circles, but ellipses and Mercuryт??s orbit was the least circular (or most т??eccentricт??) known. ... Vulcan, according to Le Verrier, orbited the Sun every 19.7 days at an average distance of 21 million km (0.14 au), a little over a third of Mercury?s average distance from the Sun. ...

List of objects for April, 23/24 and 24/25 observations . object . ... SN 2009ao (disc. 2009/02/04.12) . ... 16.6CR (Apr, 13.852) . Spectra (range 402.7-1011 nm, Mar. ... discovered 2009/02/19) . ... 20.3R (Mar, 06.35) FAINT OBJECT! ... SN 2009Z (disc 2009/02/02.53) . ... SN 2009bw (discovered Mar , 27.871) . ... SN 2009ba (discovered Mar, 21.18) . ... 17:49:00.1(good; first part of night) . ... SN 2009az (discovered Mar, 20.30; close to host nuclei) . ... 2009by (discovered Mar, 29.28) . ...

. Back to A.Zasov's homepage.