... Previous Spitzer and IRAS observations of the LMC suggest an excess of FIR emission with respect to the gas surface density traced by 12CO rotational emission lines and H i 21 cm emission. ... Aims: Based on Herschel HERITAGE observations taken as part of the science demonstration phase, we examine the correlation between gas and dust surface densities at higher resolution than previously achieved. ... Dust surface density maps were derived from the HERITAGE data. ...

Еще в разделе: (Показать все результаты (>15246) - www.stsci.edu/ )

• HST Spectral Maps of Accretion Disks in Cataclysmic Binaries
• Thermal and Nonthermal Infrared Emission from M87
• Energy Sources of the Far-Infrared Emission of M33

... 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 ...

Еще в разделе: (Показать все результаты (>321) - mavr.sao.ru/ )

• RCJ0311+0507
• Ratan-600 observation schedule
• Galaxy sector, archive 2014

... This thesis sets out to explain this observation by the presence of optical non-thermal synchrotron emission, connected with the relativistic jet that powers the radio emission in these quasars. ... We find that about 40% of the sources have power-law SEDs, while a similar number show evidence for two primary components: a blue power law and optical synchrotron emission. The blue power law is similar to the dominant component observed in the spectra of optically-selected QSOs. ...

Еще в разделе: (Показать все результаты (>18836) - www.atnf.csiro.au/ )

• The optical emission from gamma-ray quasars
• Previous HI observations of dSph galaxies
• casacore: components/SpectralComponents/SpectralFit.h Source File

... Flux density at 1 GHz (/Jy): 2720 . ... 1991, ApJ, 373, 146. ... ADS . ... VLA at 1.4 GHz and 4.8 GHz (both 1".3), for polarisation studies. ... VLA at 1.4 GHz and 4.8 GHz, for proper motion studies. ... 151 MHz observations for bulk expansion studies. ... Chandra observations, showing outer shock. ... Fesen et al. ... Spitzer observations. ... Chandra observations of rim. ... 2006, ApJ, 636, 848. ... 2006, ApJ, 647, L41. -ray line observations. ... Spitzer and Chandra observations for 3-D structure...

Еще в разделе: (Показать все результаты (>2435) - www.mrao.cam.ac.uk/ )

• Bojan Nikolic -- 90 GHz Continuum Observations of Messier 66
• G263.9-3.3
• VLBI observations of the quasar 3C380

... The HST uses an onboard model of its orbit to perform in real-time various control functions relating to spacecraft operations and observation support. ... New coefficients for the ephemeris are updated every other day, and are archived as FITS keywords for each HST observation data set. Using these coefficients,an observer can perform a variety of calibration and characterization calculations relating to the orbital position and velocity of the telescope. ...

Еще в разделе: (Показать все результаты (>1536) - www.adass.org/ )

• A Spectroscopy Exposure Time Calculator for IRAF
• TwoFitlines: An Spectrum and Line Analysis Tool
• ETCs and Observations Simulation at the VLT

... Archives . ... The PCA and ICA is used for separating mixed components with some assumptions. ... The need of source separation methods in astronomy has led various adaptations of decomposition methods available. ... I rarely come up with a paper which gathered and summarized component separation methods applicable to astronomical data. In that regards, the following paper seems useful to overview methods of reducing dimensionality for astronomers. [arxiv:0805.0269] . ... Chandra Blog . ...

Еще в разделе: (Показать все результаты (>2260) - hea-www.harvard.edu/ )

• The AstroStat Slog component separation
• Comments on: [ArXiv] component separation methods By: hlee By: Sam Leach
• PINTofALE EXAMPLE : Simulation for Chandra ACIS-I

... The resolution used was R=19,000 (= 0.2-0.5 е) from 3600- 9000 е ABSTRACT H H Highly Variable Balmer Lines a) Inverse P-Cygni Profiles H and H present consistent IPC profiles in their emissions with red-displaced absorption components Recent detections of rapid variability in most lines observed (3600 to 9000 е, resolution = 0.2-0.5 е), in the enigmatic Herbig Be star ... However, a small number of HAeBe (11%) and T Tauri (7%) stars have been found to present IPC profiles in H (3)....

Еще в разделе: (Показать все результаты (>20684) - www.eso.org/ )

• DFS Group Home Page
• Triple with velocity curves for all components
• Research

... 88, Jan. 1983, p. 1-15. l. A survey of extragalactic radio sources made using driven declination scans is reported covering an area of about 0.07 sr to a limiting flux density of 35 mJy. The fast-scan survey was carried out at a galactic latitude greater than 17 deg with the NRAO 91-m telescope operating at 4.755 GHz, and the 480 sources detected were reobserved at 1.4 GHz with the National Astronomy and Ionosphere Center 305-m telescope at Arecibo. ...

Еще в разделе: (Показать все результаты (>1872) - www.sao.ru/ )

• H I 21 cm observations and data reduction
• The BSA SNRs Survey
• USS radio sources

As an example for an observation of a stellar corona, a simulation of the response of RGS was performed. The input spectrum was a two component Mewe-Kaastra plasma, with solar abundance, and temperatures of 0.35 and 2 keV. ... The following image shows an intensity display of the measured spectrum with dispersion coordinate as measured in the spatial dimension on the RGS Focal Camera (RFC) along the abscissa, and the energy response of the CCDs along the ordinate. ...

Еще в разделе: (Показать все результаты (>6150) - xmm.vilspa.esa.es/ )

• RGS CCF Components
• CCF Components
• Radiation Workshop Topics

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . ... Listed Since July 15, 1998 . ... 775) 246-5281 . ... 775) 246-5211 . Web Site . ... Web . www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

Еще в разделе: (Показать все результаты (>210) - www.astronomy.net/ )

• Robert F. Royce, Precision Optical Components, AstroGuide Listing

... Galaxies 99 Cosmic background with model of cloudy interstellar medium Yu. ... Figure 1: Averaged spectrum of the cosmic background I f in frequency range 0.25 200 MHz for the Galactic poles. ... First interpretation of the cosmic noise background spectrum at broad band frequency range 0.25 200 MHz with a model of the cloudy interstellar medium ISM is presented here. ... Synthesized background spectra I f for regions of the Galactic poles at the frequency range 0.25 200 MHz is presented in Fig. ...

Еще в разделе: (Показать все результаты (>330) - www.gao.spb.ru/ )