The Chemically Distinct Nucleus and Structure of the S0 Galaxy NGC 80 O. K. Sil'chenko1, S. E. Koposov1, V. V. Vlasyuk2, and O. I. Spiridonova 1 2 2 Sternberg Astronomical Institute, Universitetski i pr. ... The global stellar disk of NGC 80 has a two-tiered structure: its outer part has an exponential scale length of 11 kpc and normal surface density, while the inner disk, which is also exponential and axisymmetric, is more compact and brighter. ...

... These reports are submitted for engineering work accomplished during bright time and maintenance shutdowns. ... 010531: May 2001 Bright Time Engineering Work Summary . ... 020102: January 2002 Bright Time Engineering Work Summary . 020202: February 2002 Bright Time Engineering Work Summary . ... 030101: January 2003 Bright Time Engineering Work Summary . ... 040101: January 2004 Bright Time Engineering Work Summary . ... 050101: January 2005 Bright Time Engineering Work Summary . ...

Тема : Хвостатые гостьи V (информация для наблюдения комет) .. Показать сообщение отдельно . ... Хвостатые гостьи .. ... после того, как ISON приплыл мимо нас, земля находится на орбитальной траектории, которая пройдет через след частицы кометы (тот, который ISON оставил позади, когда это приближалось к солнцу и это случайно встретит или вокруг 12 января - 15, 2014 . ... лучшее время наблюдения 22:00 LDT (Northern hemisphere 45њ North) .. - радиант расположен вблизи Al'dzhabkhakh (30-Eta Leonis, ? ...

New GCVS Version (GCVS5) FileName Explanations ----------------------------------------------------------------- ReadMe This file GCVS5 The ... ------------------------------------------------------ 1- 2 I2 --- Constell [1/88]Constellation numeric code 3- 6 I4 --- Number Star number within the constellation 7 A1 --- Component *Component identification 9- 18 A10 --- GCVS * Variable ... Field is non-blank if magMin is a magnitude or amplitude given in a system other than that indicated by magCode. ...

We have analyzed dimmings (i.e. transient coronal holes) and manifestations of a . coronal wave in the famous event of 14 July 2000 using images produced with the EUV . telescope SOHO/EIT. ... this event was studied using running -difference EIT images at 195 formed by the . ... Running -difference images . ... fixed -difference images are considered. ... 171, 195, 284, and 304 , as well as the light curves of the main dimmings including . several later images at 195 . To event page ...

National Aeronautics and Space Administration . ... Jeffrey N. Williams (COLONEL, U.S. ARMY, RETIRED) . ... Williams has served in the Extra-Vehicular Activity (EVA), Space Station, and Soyuz Branches of the Astronaut Office, led the development of a space shuttle cockpit upgrade, and completed temporary assignments at Marshall Space Flight Center supporting the test and evaluation of the International Space Station Laboratory Module and at NASA Headquarters in support of legislative affairs. ...

Polycyclic aromatic hydrocarbons in HII regions: correlation with metallicity . ... We have perfomed the aperture photometry of HII regions using infrared images from telescopes Spitzer and Herschel at passbands 3.6, 4.5, 5.8, 8.0, 24, 70 and 160 m. Emission of PAHs are observed at passbands 3.6 - 8.0 m, 24 m is emission likely of hot small particles and finally large particles are responsible for emission at 70 and 160 m. We determine abundances of PAHs using model of Draine Li (2007) . ...

N NGC N Созв. ... C-1 NGC 188 Cep OC Open cluster 00h 44.4m +85 20' 8.1 14 C-2 NGC 40 Cep PN Planetary nebula 00h 13.0m +72 32' 12.4 0.6 C-3 NGC 4236 Dra SG Spiral galaxy 12h 16.7m +69 28' 9.7 19 x 7 C-4 NGC 7023 Cep BN Bright nebula 21h 01.8m +68 12' -- 18 x 18 Refl. nebula C-5 IC 342 Cam SG Spiral galaxy 03h 46.8m +68 06' 9.2 18 x 17 C-6 NGC 6543 Dra PN Planetary nebula 17h 58.6m +66 38' 8.1 5.8 Cat's Eye Neb. ... C-103 NGC 2070 Dor BN Bright nebula 05h 38.7m -69 06' -- 40 x 25 Tarantula Neb. ...

... ADC_Keywords: Galaxy catalogs ; Nonstellar objects Description: NGC 2000.0 is a modern compilation of the New General Catalogue of Nebulae and Clusters of Stars (NGC), the Index Catalogue (IC), and the Second Index Catalogue compiled by J. L. E. Dreyer (1888, 1895, 1908). ... The order of the new catalog is strictly by right ascension, the NGC and IC objects being merged into one machine-readable file. ... The book also contains a table of right ascensions for NGC and IC objects. ...

Full-Text Search . ... arXiv.org . astro-ph . ... SAI VO . Search sort results by Date Relevance . Use logical operators AND , OR , NOT and round brackets to construct complex queries. Whitespace-separated words are treated as AND ed. Show 10 50 100 articles per page in Full Compact mode . Normalized to: Bright, J. 1 article(s) in total . 4 co-authors. Median position in authors list is 5,0 . Co-author(s): . ... Astronet | SAI MSU . ...

UPPER PANEL: The gas surface density map in log scale. The red circle in the center represents the central protostar. The development of spiral structure in the protostellar disk is evident. Dense protostellar/protoplanetary clumsp form within the spiral arms and are driven into the protostar by the action of gravitational torques. LOWER PANEL: The mass accretion rate onto the protostar as a function of time. The mass accretion rate is characterized by very short ( . ...

... 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; . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Pleins soleils dans la galaxie IC 391 . ... А 80 millions d'ann†йes-lumi†иre de la Voie lact†йe, dans la constellation de la Girafe, la galaxie spirale IC391 offre une vue g†йn†йreuse sur ses milliards de soleils - les plus chauds et puissants †йtant ici visibles en bleu....

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The Galaxy Disk in Cosmological Context Proceedings IAU Symposium No. ... The presence of exponential bulges and anti-truncated disks has been noticed in many lenticular galaxies. ... Among our findings in unbarred spiral galaxies, only one galaxy, NGC 5533, has a LSB outer disk (Sil'chenko et al. ... In the frame of this model, the Exponential bulges and antitruncated disks 5 inner disk must be more bright and compact than the usual large-scale stellar disks of spiral galaxies are. ...

... Подписка на рассылку обзоров astro-ph на Subscribe.Ru . ... Обзоры УФН . ... Результаты WMAP . Изучение центра нашей Галактики . ... Разрыв Вселенной" . ... звезды , . ... Короткое эссе об электронных препринтах . ... Самые интересные препринты astro-ph января 2003 года по материалам обзоров Архива на сайте Scientiic.Ru " . ... Authors: A. M. Ghez et al. astro-ph/0306220 Геометрическое определение расстояния до центра Галактики (A Geometric Determination of the Distance to the Galactic Center) . ...

Milky Way X-ray background emission « »: , . ... RXTE , . ... Using near-infrared Galaxy intensity measured with COBE/DIRBE experiment and X-ray data from RXTE and INTEGRAL it was shown that X-ray brightness of the Galactic background emission closely follows its stellar density and can be explained by a cumulative emission of a large number of weak Galactic X-ray sources. ... Map of Galactic background emission in hard X-ray energy band obtained with INTEGRAL observatory. ... 2006, &, 452, 169 ., ...

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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: . ...

The 2dF QSO Redshift Survey (2QZ) . ... Before jumping into all the finer details of teh survey, a brief non-astronomer's guide to redshift surveys is available. ... The primary scientific aims of the QSO survey are: (1) to obtain the primordial fluctuation power spectrum out to COBE scales, (2) to determine the rate of QSO clustering evolution in the non-linear and linear regimes and hence obtain new limits on the value of and the bias parameter, (3) to apply a powerful geometric method to measure . ...