Browsing Articles by Subject "Astronomical spectroscopy"

Browsing Articles by Subject "Astronomical spectroscopy"

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  • Turner, David Gerald, 1945-; Majaess, Daniel J.; Lane, D. J.; Balam, D. D.; Gieren, W. P.; Storm, J.; Forbes, D. W.; Havlen, R. J.; Alessi, B. (Oxford Academic, 2012-05)
    The parameters for the newly discovered open cluster Alessi 95 are established on the basis of available photometric and spectroscopic data, in conjunction with new observations. Colour excesses for spectroscopically ...

  • Zwintz, K.; Fossati, L.; Ryabchikova, T.; Kaiser, A.; Gruberbauer, Michael; Barnes, T. G.; Baglin, A.; Chaintreuil, S. (EDP Sciences, 2013-02)
    Context. Pulsations in pre-main sequence stars have been discovered several times within the last years. But nearly all of these pulsators are of [delta] Scuti-type. [gamma] Doradus-type pulsation in young stars has been ...

  • Pollmann, E; Bennett, Philip Desmond, 1952-; Hopkins, J. L. (Konkoly Observatory, 2016-01-16)
    VV Cep is an eclipsing binary with a period of about 20.4 years that is comprised of an M2Iab primary star and an early B secondary star. A preliminary orbit was announced in 1933 by Harper & Christie (1936), and McLaughlin ...

  • Martin, Crystal L.; Sawicki, Marcin, 1969-; Dressler, Alan; McCarthy, Pat (American Astronomical SocietyIOP Publishing, 2008-06-01)
    We present results from a blind, spectroscopic survey for z ~ 5.7 Ly[alpha]-emitting galaxies (LAEs) using the Inamori Magellan Areal Camera and Spectrograph. A total of ~200 arcmin[superscript 2] were observed in the ...

  • Young, Mitchell E.; Short, C. Ian (Christopher Ian), 1965- (IOP Publishing, 2014-05-20)
    Spectra for two-dimensional (2D) stars in the 1.5D approximation are created from synthetic spectra of one-dimensional (1D) non-local thermodynamic equilibrium (NLTE) spherical model atmospheres produced by the PHOENIX ...

  • Men'shchikov, A. B.; Miroshnichenko, A. S.; Levato, H.; Bjorkman, K. S.; Grosso, M.; Manset, N.; Rudy, R. J.; Lynch, D. K.; Mazuk, S.; Venturini, C. C. (European Southern ObservatoryEDP Sciences, 2004-04)
    We present the results of optical and near-IR spectroscopic and mid-IR imaging observations of the emission-line star MWC 300. Its properties and evolutionary state are still under debate (a B[e] supergiant or a Herbig Be ...

  • Zwintz, K.; Fossati, L.; Guenther, David B.; Ryabchikova, T.; Baglin, A.; Themessl, N.; Barnes, T. G.; Matthews, J. M.; Auvergne, M.; Bohlender, D. (EDP Sciences, 2013-04)
    Context. The internal structure of pre-main-sequence (PMS) stars is poorly constrained at present. This could change significantly through high-quality asteroseismological observations of a sample of such stars. Aims. We ...

  • Lemaux, B. C.; Lubin, L. M.; Sawicki, Marcin, 1969-; Martin, C.; Lagattuta, D. J.; Gal, R. R.; Kocevski, D.; Fassnacht, C. D.; Squires, G. K. (American Astronomical SocietyIOP Publishing, 2009-07-20)
    We present results of a spectroscopic search for Ly[alpha] emitters (LAEs) in the Cl1604 supercluster field using the extensive spectroscopic Keck/DEep Imaging Multi-Object Spectrograph database taken as part of the ...

  • Chadima, P.; Harmanec, P.; Bennett, Philip Desmond, 1952-; Kloppenborg, B.; Stencel, R.; Yang, S.; Bozic, H.; Slechta, M.; Kotkova, L.; Wolf, M. (EDP Sciences, 2011-06)
    A series of 353 red electronic spectra (from three observatories, mostly from 6300 to 6700 A) obtained between 1994 and 2010, and of 171 UBV photometric observations (from two observatories) of the 2010 eclipse, were ...

  • Richardson, Noel D.; Moffat, Anthony F. J.; Maltais–Tariant, Raphael; Pablo, Herbert; Gies, Douglas R.; Saio, Hideyuki; St-Louis, Nicole; Schaefer, Gail; Miroshnichenko, Anatoly S.; Farrington, Chris; Guenther, David B. (Oxford University Press, 2016)
    MWC 314 is a bright candidate luminous blue variable (LBV) that resides in a fairly close binary system, with an orbital period of 60.753 [plus or minus] 0.003 d. We observed MWC 314 with a combination of optical spectroscopy, ...

  • Walton, D. J.; Nardini, E.; Fabian, A. C.; Gallo, Luigi C.; Reis, R. C. (Oxford University Press, 2013-02)
    We present an X-ray spectral analysis of a large sample of 25 ‘bare’ active galactic nuclei (AGN), sources with little or no complicating intrinsic absorption, observed with Suzaku. Our work focuses on studying the potential ...

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