5.2.7.4 Intrinsic color, color excess, and interstellar absorption

2005 ◽  
pp. 362-367
Author(s):  
E. Lamla
Keyword(s):  
Interstellar Absorption ◽  
Color Excess

scholarly journals Interstellar absorption and color excess in SCO OB1

1971 ◽  
Vol 76 ◽  
pp. 237 ◽  
Author(s):  
R. E. Schild ◽  
G. Neugebauer ◽  
J. A. Westphal
Keyword(s):  
Interstellar Absorption ◽  
Color Excess

scholarly journals A Study of Interstellar Reddening at High Galactic Latitudes

1973 ◽  
Vol 50 ◽  
pp. 295-301
Author(s):  
A. G. Davis Philip
Keyword(s):  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
The South ◽  
Interstellar Absorption ◽  
The North ◽  
Color Excess ◽  
North Galactic

A series of finding lists of A stars in regions at high galactic latitudes has been published in the last few years. Strömgren four-color and Hβ measures have been made of stars in five of the regions, allowing the interstellar absorption in each to be calculated. The two most important regions are the North Galactic Pole and the South Galactic Pole where color excesses of EB_V=0.00 and EB_V=0.02 were found respectively. An area in front of the Large Magellanic Cloud has a color excess of EB_V=0.04.

Echelle Spectroscopy of Interstellar Absorption toward μ Columbae with the Goddard High Resolution Spectrograph

1999 ◽  
Vol 117 (1) ◽  
pp. 400-409 ◽  
Author(s):  
J. C. Brandt ◽  
S. R. Heap ◽  
E. A. Beaver ◽  
A. Boggess ◽  
K. G. Carpenter ◽  
...  
Keyword(s):  
High Resolution ◽  
Interstellar Absorption ◽  
Echelle Spectroscopy

Ultrafine Structure in the λ5797 Diffuse Interstellar Absorption Band

1998 ◽  
Vol 495 (2) ◽  
pp. 941-945 ◽  
Author(s):  
T. H. Kerr ◽  
R. E. Hibbins ◽  
S. J. Fossey ◽  
J. R. Miles ◽  
P. J. Sarre
Keyword(s):  
Absorption Band ◽  
Interstellar Absorption ◽  
Ultrafine Structure

The 10-micron interstellar absorption band: Curves of growth for terrestrial and meteoritic olivine particles

1977 ◽  
Vol 48 (2) ◽  
pp. 305-312 ◽  
Author(s):  
J. Dorschner ◽  
C. Friedemann ◽  
J. G�rtler
Keyword(s):  
Absorption Band ◽  
Interstellar Absorption

Origin of the Diffuse Interstellar Absorption Bands

Nature ◽  
1968 ◽  
Vol 218 (5137) ◽  
pp. 153-153 ◽  
Author(s):  
W. W. DULEY
Keyword(s):  
Absorption Bands ◽  
Interstellar Absorption

scholarly journals The color excess of quasars with intervening DLA systems

2007 ◽  
Vol 478 (3) ◽  
pp. 701-715 ◽  
Author(s):  
G. Vladilo ◽  
J. X. Prochaska ◽  
A. M. Wolfe
Keyword(s):  
Color Excess

scholarly journals 10. Radio observations of interstellar neutral hydrogen clouds

1957 ◽  
Vol 4 ◽  
pp. 66-66
Author(s):  
R. S. Lawrence
Keyword(s):  
Angular Resolution ◽  
Neutral Hydrogen ◽  
Optical Component ◽  
Absorption Lines ◽  
Radio Observations ◽  
Interstellar Absorption ◽  
Peak Intensity

The detailed relationship between optical interstellar absorption lines and 21-cm. observations is investigated in this paper.Dr Guido Münch, of the Mount Wilson and Palomar Observatories, provided the list of six intermediate-latitude stars shown in Table 1. The spectra of these stars all show complex absorption lines due to interstellar Ca 11. The 21-cm. line is measurable in four of the six regions, although the peak intensity is low in each case. It is noteworthy that for the first two stars on the list the radio velocity agrees closely with the velocity of an intense optical component. In view of the great difference in angular resolution, the failure to find correspondence in every case is not surprising.

scholarly journals Quiescent and flaring lyman-α radiation of host stars and effects on exoplanets

2015 ◽  
Vol 11 (S320) ◽  
pp. 391-396
Author(s):  
Jeffrey L. Linsky ◽  
Kevin France ◽  
Yamila Miguel ◽  
Lisa Kaltenegger
Keyword(s):  
Emission Lines ◽  
Late Type ◽  
Chemical Abundances ◽  
Interstellar Absorption ◽  
Ultraviolet Spectra ◽  
M Stars ◽  
Host Stars ◽  
Stars Flare ◽  
Photochemical Models

AbstractLyman-α radiation dominates the ultraviolet spectra of G, K, and M stars and is a major photodissociation source for H2O, CO2, and CH4 in the upper atmospheres of exoplanets. We obtain intrinsic Lyman-α line fluxes for late-type stars by correcting for interstellar absorption or by scaling from other spectroscopic observables. When stars flare, all emission lines brighten by large factors as shown by HST spectra. We describe photochemical models of the atmosphere of the mini-Neptune GJ 436b (Miguel et al. 2015) that show the effects of flaring Lyman-α fluxes on atmospheric chemical abundances.

Interstellar Absorption Lines

2004 ◽  
Author(s):  
Edward Jenkins
Keyword(s):  
Absorption Lines ◽  
Interstellar Absorption
Sign in / Sign up

Export Citation Format

Share Document