Characteristics of nearby interstellar matter
PC Frisch - Space Science Reviews, 1995 - Springer
There is a warm tenuous partially ionized cloud (T∼ 10 4 K, n (HI)∼ 0.1 cm− 3, n (H ii∼
0.22–0.44 cm− 3) surrounding the solar system which regulates the environment of the solar …
0.22–0.44 cm− 3) surrounding the solar system which regulates the environment of the solar …
The origin of subdwarf B stars–I. The formation channels
Subdwarf B (sdB) stars (and related sdO/sdOB stars) are believed to be helium-core-burning
objects with very thin hydrogen-rich envelopes. In recent years it has become increasingly …
objects with very thin hydrogen-rich envelopes. In recent years it has become increasingly …
Carmenes input catalogue of m dwarfs-i. low-resolution spectroscopy with cafos
Context. CARMENES is a stabilised, high-resolution, double-channel spectrograph at the
3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs …
3.5 m Calar Alto telescope. It is optimally designed for radial-velocity surveys of M dwarfs …
A spectroscopic survey and analysis of bright, hydrogen-rich white dwarfs
We have conducted a spectroscopic survey of over 1300 bright (V⩽ 17.5), hydrogen-rich
white dwarfs based largely on the last published version of the McCook & Sion catalog. The …
white dwarfs based largely on the last published version of the McCook & Sion catalog. The …
Soft X-ray properties of narrow-line Seyfert 1 galaxies.
T Boller, WN Brandt, H Fink - … and Astrophysics, v. 305, p. 53, 1996 - adsabs.harvard.edu
We report on AGN with extremely soft X-ray spectra observed with ROSAT. From their optical
emission lines these objects are classified as narrow-line Seyfert 1 galaxies (NLS1), almost …
emission lines these objects are classified as narrow-line Seyfert 1 galaxies (NLS1), almost …
Extreme ultraviolet astronomy
S Bowyer, JJ Drake, S Vennes - Annual Review of Astronomy …, 2000 - annualreviews.org
▪ Abstract Astronomical studies in the extreme ultraviolet (EUV) band of the spectrum were
dismissed during the early years of space astronomy as impossible, primarily because of the …
dismissed during the early years of space astronomy as impossible, primarily because of the …
RE 1034+ 39: a high-state Seyfert galaxy?
The dominant X-ray emission of Seyfert galaxies has the form of a power law of mean
photon index 1.9–2.0 which extends to at least 100 keV. However, recent observations …
photon index 1.9–2.0 which extends to at least 100 keV. However, recent observations …
ROSAT—A New Look at the X-ray Sky
J Trümper - Science, 1993 - science.org
Fig. 1. X-ray shocks. Color map of Vela and Puppis A supernova remnants. Supersonic
wakes preceding the main shock front are seen in the east (left), west, and north. tronomy …
wakes preceding the main shock front are seen in the east (left), west, and north. tronomy …
The Palomar/Keck adaptive optics survey of young solar analogs: evidence for a universal companion mass function
We present results from an adaptive optics survey for substellar and stellar companions to
Sun-like stars. The survey targeted 266 F5–K5 stars in the 3 Myr–3 Gyr age range with …
Sun-like stars. The survey targeted 266 F5–K5 stars in the 3 Myr–3 Gyr age range with …
Rotational Velocities of Late-Type Stars
FC Fekel - Publications of the Astronomical Society of the Pacific, 1997 - iopscience.iop.org
A calibration based on the results of Gray has been used to determine projected rotational
velocities for 133 bright stars with spectral types of F, G, or K, most of which appear in The …
velocities for 133 bright stars with spectral types of F, G, or K, most of which appear in The …