... Supernova 1987a Fireball Resolved . ... Credit: C. S. J. Pun ( GSFC ) & R. Kirshner ( CfA ), WFPC2, HST , NASA Explanation: Ten years ago the most notable supernova of modern times was observed. ... Supernova 1987a remains the closest supernova since the invention of the telescope . ... Публикации с ключевыми словами: fireball - supernova - взрывы сверхновых - Сверхновые . Публикации со словами: fireball - supernova - взрывы сверхновых - Сверхновые . ... Симпозиум "20 лет Сверхновой SN 1987A" . ...

... January 24, 1997 . Supernova 1987a Fireball Resolved . Credit: C. S. J. Pun ( GSFC ) & R. Kirshner ( CfA ), WFPC2, HST , NASA . ... Supernova 1987a remains the closest supernova since the invention of the telescope . The explosion catapulted a tremendous amount of gas , light , and neutrinos into interstellar space. ... More recent HST observations shown in the inset, however, have uncovered something actually predicted : the expanding fireball from the exploding star. ... About APOD > . ...

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... Science . ... Science Users Information > Science Publications > Science Announcements > RASPUTIN: Resolved And unresolved Stellar PopUlaTIoNs . ... During the workshop the impact that the European Extremely Large Telescope (E-ELT) and its first generation instruments will have on resolved and unresolved stellar population studies will be discussed. Registration is open until 12 September 2014 and further information is available from the RASPUTIN webpage or by email to: rasputin@eso.org . ...

We report here on those proposed UIT targets that, in fact, were successfully acquired. ... Note on Filters: . A1 centered at 2500 angstroms with a width of 1200 angstroms . ... Sextans A is a low mass dwarf companion to the Milky Way Galaxy. It is sufficiently close that it is easily resolved into its individual stars. ... An exposure of 1100 seconds through the A1 and B1 filters was obtained. NGC 2903 Is a relatively nearby mostly face-on galaxy with active star formation. ...

... Posts tagged ?Banff Challenge? ... 4 Comments . ... The paper about the Banff challenge [0712.2708] and the statistics tutorial for cosmologists [0712.3028] are the personal recommendations from this week?s [arXiv] list. ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray ....

... The FOS employed one of six basic data taking modes to acquire science data: . Spectrophotometry (ACCUM). ... Image. ... ACCUM was by far the most commonly used observing mode. ... In IMAGE mode observations both the number and length of rasters and the y- position of each raster could be specified, so that: 1) a white-light image of all or a portion of the aperture was possible with the MIRROR, and 2) spectra from different portions of the aperture were sampled with a disperser. ...

. Comment on J2250+1419 . Resolved: the source is extended, with about 0.15 Jy correlated flux density observed with the shortest VLBA baselines. It was not detected at 2.3 GHz by Preston et al. (1985). Augusto, Wilkinson & Browne (1998) find it partially resolved with MERLIN at 5 GHz. See Figure 3. VLBApls home page . Last modified: 16 Oct 2000

A B A B A B1 B2 B3 Figure 1: SHEVE images of PKS0022\Gamma423, 0237\Gamma233, 1718\Gamma649 and 1934\Gamma638 at either 2.3 or 4.8 GHz. These images all demonstrate the un­ resolved, or barely resolved, character of most of the components in these sources when observed with ground­only baselines.

... 105Lawrence+ Nearly 1000 sources from the 5 GHz MIT-Green Bank (MG) survey have been observed with the VLA. ... About 1000 sources, selected as described in IIa from a prelimenary version of the MIT-GB I catalog, have been observed with VLA. ... About 20 sources observed at the VLA are within the MG sky area and above the 106 mJy completeness limit, even allowing for the large flux-density errors in the preliminary list, but do not appear in the MG catalog. ... 1 Source name in IAU B1950.0 format. ...

... In this paper we present the results of detailed B, V, R, I, and H study of the isolated nearby blue compact dwarf (BCD) galaxy NGC6789. Judging from the literature the observed galaxy has not been resolved into stars up to now. ... The distance of the galaxy, estimated from the tip of the red giant branch (TRGB) is 2.1 Mpc which places NGC6789 close to the Local Group. ... Key words: nearby galaxies: dwarf galaxies (NGC 6789): distance moduli: star content . ... Distance. ...

Astronomers at Armagh Observatory observed the partial eclipse of the Sun on 29 March under unusually good conditions. ... The images, taken by astronomer Miruna Popescu, shows the eclipse as seen from the Armagh Observatory at around 11:30 (Summer Time) on 29th March, and the way it was observed by astronomer Apostolos Christou with a small portable telescope equipped with a filter to protect against the Sun's dangerous radiation. ... For more images from Armagh see: Miruna Popescu's Pages . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 50 Greatest Mysteries . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... exoplanets . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Exoplanet mysteries solved . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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The problem of solar wind data correlation for the observations onboard several spacecraft is very important for three points of view: . ... This problem is studied now in detail by systematic determination of ion flux and ion velocity data correlations by INTERBALL-1 (IKI group), WIND and IMP 8 (both - MIT group). ... Solar wind plasma correlation lengths from IMP 8, WIND and INTERBALL-1. ... Correlation of solar wind observations onboard several spacecraft: INTERBALL-1, IMP 8 and WIND data. ...

... Data of obs. ... Reduced (Paper I) . NGC 0023 . VIII.1998 . ... NGC 0132 . ... Reduced . NGC 0157 . ... NGC 0615 . ... NGC 0753 . ... NGC 0945 . ... Bad data (clouds); . NGC 0972 . ... II.1998 . ... NGC 1024 . ... NGC 1058 . ... NGC 1073 . ... NGC 1084 . ... NGC 1134 . ... NGC 1637 . ... NGC 2276 . ... NGC 2608 . ... NGC 2964 . ... NGC 3184 . ... Bad data (low S/N) . NGC 3338 . ... Bad data (IFP failure) . NGC 3344 . ... Reduced (bad data) . ... Back to Project Vortex. ...

Ground-Based Mid Infra-Red Observations of Nearby Starburst and AGN Galaxies Bo jan Nikolic , Paul Alexander, Garret Cotter and Malcolm Longair Astrophysics Group, Cavendish Lab, Cambridge, U.K. Marcel Clemens Universita degli Studi di Padova, Italy Abstract. We present preliminary results of recent spatially resolved mid infrared (Mid-IR) spectroscopy with the MICHELLE instrument on UKIRT of NGC 7469, observed as part of a larger programme to study a sample of starburst and AGN in the Mid-IR. ...

IV International Astronomy Olympiad . ... Text of these problems is available also . ... To solve every problem you may use constants and well-known values you know by heart. ... The apparent diameter of the Moon, as seen from the Earth, is 31'. ... Can you observe a star with magnitude . ... Consider the stars as black bodies. ... Estimate the diameter of a black hole constructed using this patent from a ship with the mass of 5000 tn (1 tn = 1000 kg). ... What stars would you observe this nigth? ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...