... Absorption by neutral atomic hydrogen in luminous spiral galaxies provides an excellent tool to study the gas kinematics in their nuclear regions. ... Since the absorption lines are intrinsically narrow as a result of the low temperatures of the optically thick gas, typically 30 to 150 K (Dickey, Salpeter & Terzian 1979), it is surprising that numerous galaxies show H I absorption over a broad range of velocities (a few hundred kms -1 ); see e.g., Fig. ... range . ... NGC 253 . ... NGC 660 . ...

... Thesis Topic: Use of CO rotational vibrational absorption spectroscopy to study physical conditions of very early stages for star formation . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... ESO Data . ... ESO HST Image Galleries . ... ESO Data Access Policy . ... CO-gas in the respective clouds will be observed in absorption against anonymous field background stars. This will allow to constrain the very early phases of star formation with very high precision in a novel way. ...

spaceweb@oulu.fi - last update: 28 May 1995, 0800 UT . Strong solar particle (SP) events (see Cosmic rays ) produce intense ionization in the D-region (between 50 and 90 km altitude) ionosphere over the polar caps . These events are called polar cap absorption (PCA) events because the increased ionization absorbs radio waves in the HF and VHF bands. PCA events can be studied, e.g., by riometers . See also: . Space Physics Text Book of Oulu

... Posts tagged ?absorption line? ... Why is it that detection of emission lines is more reliable than that of absorption lines? ... When you look at the iconic Figure 1 from Protassov et al (2002) , which shows how the null distribution of the Likelihood Ratio Test (LRT) and how it holds up for testing the existence of emission and absorption lines. ... Tags: absorption line , emission line , F-test , LRT , Protassov , question for statisticians . ... Comment . ... Entries RSS . Comments RSS . ...

Next: Determination of atmospheric parameters Up: Optical spectrum of IRAS04296 Previous: Radial velocity of the . From comparison of observed and synthetic spectra of IRAS04296 we revealed some strong absorptional features whose positions coincide with known diffuse interstellar bands (DIBs) (Jenniskens et al., ... In Fig. 5 we illustrate the presence of DIB's by showing a spectral region of IRAS04296 . ...

. Next: Bibliography Up: Optical properties of cosmic Previous: Scattering properties . to be given . root 2003-04-09

... Data from NOAA SEC and other sources are given. ... Start . NOAA . ... End . ... MFS . ... non symmetrical absorption . ... Trace Flare Catalog and Trace Data Center . RESIK CATALOGUE (20010830-20030429) . ONDREJOV SOLAR RADIO EVENT ARCHIVE ( OSR ) . ... Yohkoh Flare Catalogue(HXT/SXT/SXS/HXS) (1998-2001) . ... Solar Activity Monitoring and Forecasting (Ondrejov) and Central European Solar ARchives (Observatorium Kanzelh he) click number of AR - images chromosphere in H? . ...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... Lou's (1990) cylindrical equilibrium model is extended with an equilibrium plasma flow, v 0 (r) = f \Theta v Alfv (r), where f denotes the flow strength parameter. ... Results In Figure 1 we have plotted the absorption rate versus the flow strength parameter, f . ... By increasing the flow strength parameter the absorp­ tion rate enhances very strongly. ... Absorption coefficient ff versus the equilibrium flow strength parameter, f driving wave will be strongly absorbed (Goossens and Hollweg, 1993)....

... Searching for GOTOQS Proper ties of GOTOQs The future: utilizing MUSE in absorption line studies 2 Tuesday, June 9, 15 What are GOTOQs? ... Photometric and spectroscopic proper ties How are emission and absorption proper ties connected? How are low-z absorption systems related to higher-z absorption systems? ... Orientation and inclination angle Photometric and spectroscopic proper ties How are emission and absorption proper ties connected? ...

... Скраб для лица Algologie позволяет деликатно очистить кожу, улучшить цвет лица и избавить кожу от ороговевших частичек. ... Цвет: розовый . ... Материал верха: искусственная лаковая кожа . ... Материал подошвы: резина . ... Пол: Женский . Ботинки Vivian Royal. ... Материал: искусственная лаковая кожа. ... Цвет: Салатовый . ... Пол: Для мальчика . ... Футболка светло-зеленого цвета марки KOGANKIDS для мальчиков. ... Материал корпуса: Пластик . ... Цвет: Белый . ... Цвет: синий . ... Пол: Мужской . ...

Astronomical Data Center . ... You can access the files described here in three ways: . ... Use CDS' VizieR Service at ADC to explore the data files. ... Get the data files via anonymous FTP. ... 1981) -------------------------------------------------------------------------------- Byte-per-byte Description of file : table1a Byte-per-byte Description of file : table1b -------------------------------------------------------------------------------- Bytes Format Units Label Explanations ...

... E-mail: shalynin@issp.ac.ru . ... R.A.Dilanyan, S.S.Khasanov, S.I.Bredikhin, A.F.Gurov, V.V.Kveder, Yu.A.Osip'yan, and A.I.Shalynin 'Phase Transitions and the Structure of the C60 Crystal Doped with Lithium by Electrodiffusion' JETP, 93, 1239 (2001) ... top . ... V.V.Kveder, T.R.Mchedlidze, Yu.A.Osipian, A.I.Shalynin 'Relationship between a combined resonance in plastically deformed n-type silicon with a dislocation structure' Solid State Physics (Russian), 32(8), 2224-2229 (1990) ... top . ...

Calcium/Sodium in the Milky Way . ... We map out calcium II sodium I absorption - corresponding to Fraunhofer H, K D lines - induced by both the interstellar medium and the circumgalactic medium of the Milky Way. ... We show that the abundance of sodium with respect to neutral hydrogen stays roughly constant in different environments, while that of calcium decreases with column density. ... Here we show the maps of calcium and sodium in the Milky Way based on the obtained data. ... Projects | ...

Next: Сейфина Елена Викторовна (ГАИШ) Up: abstracts Previous: Ревнивцев Михаил Геннадьевич (ИКИ РАН) . Статистика активных ядер галактик и космический рентгеновский фон по данным обсерватории ИНТЕГРАЛ The recently completed INTEGRAL hard X-ray all-sky survey provides a sample of more than 100 nearby AGN selected without regard to absorption effects. ...

Astronomy Picture of the Day . The Snake Nebula in Ophiuchus . ... 24.08.1997 . ... The dark winding lanes visible in part of the constellation Ophiuchus belong to the Snake Nebula. The Snake Nebula is a series of dark absorption clouds made up of Interstellar dust . ... August . ... August 1997 . ... 1997 1998 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: nebula - Ophiuchus . Publications with words: nebula - Ophiuchus . ...

ASTRONOMICHESKII TSIRKULYAR No.1573, 2010 April 12 1995 2009 . A Comparison of the Latitudinal Variations of the Methane Absorption Bands on Saturn's Disk at Equinoxes 1995 and 2009 Abstract. The observations of Saturn at last equinox 2009 have detected significant differences of the latitudinal variations of the methane absorption from observed at 1995 equinox . ... 1995 . 2008- 2009 , ­ . ... 4 ( 580-880 ) , (.1) , 2008-2009 . ... 2 , 4 725 1995 2009 . ... 1995 2009 15 , 1980 1995 . ...

... In one situation, we can use light from quasars to probe the material between us and them because that light may pass through one or more galaxies or gas clouds on its way to us. The gas inside the galaxies or the intergalactic clouds acts then as a filter, absorbing selected wavelengths from the quasar light. ... Light from a quasar must pass through clouds of gas and even faint galaxies -- each leaving its imprint on the light -- before we receive it here on Earth. ... Gravitational lensing . ...

... DEPENDENCE OF ORDINARY WAVE ANOMALOUS ABSORPTION ON THE SOUNDING PROBLEM PARAMETERS . ... Transformation of electromagnetic wave into plasma waves plays an important role in different processes taking place in ionospheric plasma. ... According to modern point of view transformation of ordinary wave into plasma waves plays an important role in small-scale random irregularities generation when ionospheric plasma is heated by power radio wave [1,2]. ... Anomalous attenuation. ...

... The variability of the spectrum of the optical component of the IR-source IRAS01005+7910 was discovered for the first time in the BTA spectra [1]. ... The spectral features include absorptions that form in near-photospheric layers, narrow envelope emissions, and emission-absorption profiles that form in photosphere-to-envelope transition layers (the wind). ... Discovery of spectral variation in the optical counterpart of IRAS01005+7910. ... Dashed line - envelope curve of all the SiII 5979 profiles ...