The Near-Ultraviolet Continuum of Late-Type Stars

2000 ◽  
Vol 119 (5) ◽  
pp. 2445-2454 ◽  
Author(s):  
Carlos Allende Prieto ◽  
David L. Lambert
Keyword(s):  
Late Type ◽  
Ultraviolet Continuum ◽  
Near Ultraviolet

scholarly journals DETECTION OF NEUTRAL PHOSPHORUS IN THE NEAR-ULTRAVIOLET SPECTRA OF LATE-TYPE STARS

2014 ◽  
Vol 797 (1) ◽  
pp. 69 ◽  
Author(s):  
Ian U. Roederer ◽  
Heather R. Jacobson ◽  
Thanawuth Thanathibodee ◽  
Anna Frebel ◽  
Elizabeth Toller
Keyword(s):  
Late Type ◽  
Ultraviolet Spectra ◽  
Near Ultraviolet

scholarly journals Ultraviolet Spectroscopic Measurements of Cool Stars

1980 ◽  
Vol 5 ◽  
pp. 263-276 ◽  
Author(s):  
A. K. Dupree
Keyword(s):  
Binary Systems ◽  
Stellar Atmospheres ◽  
Late Type ◽  
Near Ultraviolet ◽  
International Ultraviolet Explorer ◽  
Cool Stars ◽  
Late Type Star ◽  
Far Ultraviolet ◽  
Low Dispersion ◽  
Balloon Measurements

A vast increase in the amount of information on cool stars has occurred during the past 3 years starting with the spectroscopy of the brightest objects from the Princeton experiment on Copernicus, the near ultraviolet balloon measurements from BUSS, low dispersion observations in the far ultraviolet from rocket instruments, and most recently, spectra from the International Ultraviolet Explorer satellite (IUE). IUE now gives access to a wide variety of cool stars and stellar systems enabling systematic studies to be made.Drawing on the most recent material from IUE, we discuss the presence and structure of chromospheres and coronae in single stars of varying gravities, surface temperatures, and activity. Evidence of mass loss and the concurrent presence of a corona are also noted. Binary systems of late-type stars (the RS CVn and W UMa type) are briefly discussed since they display extremes of surface activity. A binary system such as VV Cep containing a late-type star and an early-type companion provides a unique probe of cool extended stellar atmospheres.

scholarly journals NON-LTE MODELING OF THE NEAR-ULTRAVIOLET BAND OF LATE-TYPE STARS

2009 ◽  
Vol 691 (2) ◽  
pp. 1634-1647 ◽  
Author(s):  
C. Ian Short ◽  
P. H. Hauschildt
Keyword(s):  
Late Type ◽  
Near Ultraviolet

scholarly journals The Near-ultraviolet Continuum Radiation in the Impulsive Phase of HF/GF-type dMe Flares. I. Data

2019 ◽  
Vol 871 (2) ◽  
pp. 167 ◽  
Author(s):  
Adam F. Kowalski ◽  
John P. Wisniewski ◽  
Suzanne L. Hawley ◽  
Rachel A. Osten ◽  
Alexander Brown ◽  
...  
Keyword(s):  
Impulsive Phase ◽  
Ultraviolet Continuum ◽  
Continuum Radiation ◽  
Near Ultraviolet

scholarly journals Optical-Infrared Continuum Spectra and Polarization of Quasars: An Outburst in 3C 279 During 1987–88

1989 ◽  
Vol 134 ◽  
pp. 385-386
Author(s):  
Thomas J. Balonek ◽  
Paul A. Heckert ◽  
Richard Elston ◽  
Paul S. Smith ◽  
Michael L. Sitko
Keyword(s):  
Linear Polarization ◽  
Ongoing Study ◽  
Spectral Evolution ◽  
Ultraviolet Continuum ◽  
Bl Lacertae ◽  
Near Ultraviolet ◽  
Spectral Components ◽  
Optical Continuum ◽  
Infrared Continuum ◽  
Infrared Brightness

We have observed a period of rapid and intense optical-infrared brightness and polarization variability in the quasar 3C 279. The observations were obtained as part of an ongoing study of the optical-infrared continuum evolution in a sample of optically violent variable (OVV) quasars and BL Lacertae objects. Simultaneous broadband UBVRI photometric and polarimetric observations are used to study the optical continuum spectral evolution and wavelength dependent linear polarization and to search for broad near-ultraviolet continuum spectral components.

A Search for Dyson Spheres around Late-Type Stars in the Solar Neighborhood II

1997 ◽  
Vol 161 ◽  
pp. 707-709 ◽  
Author(s):  
Jun Jugaku ◽  
Shiro Nishimura
Keyword(s):  
Solar Neighborhood ◽  
The Sun ◽  
Late Type ◽  
Solar Type

AbstractWe continued our search for partial (incomplete) Dyson spheres associated with 50 solar-type stars (spectral classes F, G, and K) within 25 pc of the Sun. No candidate objects were found.

The12CO(1—0) to H2conversion factor in normal late-type galaxies

2002 ◽  
Vol 4 ◽  
pp. 393-393
Author(s):  
A. Boselli ◽  
J. Lequeux ◽  
G. Gavazzi
Keyword(s):  
Late Type
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