Zobrazeno 1 - 10
of 50
pro vyhledávání: '"T. Gehren"'
Publikováno v:
The Atmospheres of Early-Type Stars ISBN: 9783540552567
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2e99de164be09fdf7f0d1157e04fcad
https://doi.org/10.1007/3-540-55256-1_272
https://doi.org/10.1007/3-540-55256-1_272
Publikováno v:
Astronomy & Astrophysics. 534:A103
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::308c91e9410f69db0b09e4af4655d560
https://doi.org/10.1051/0004-6361/201117658
https://doi.org/10.1051/0004-6361/201117658
Publikováno v:
Stellar Atmospheres: Beyond Classical Models ISBN: 9789401055741
As a first step in the simulation of photospheric granulation in cool stars we present a numerical treatment of the fully time-dependent inviscid hydrodynamical equations in conservative form and two dimensions assuming axisymmetric cylindrical geome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::333aebd5a259e9f4057c6873e2d3fb35
https://doi.org/10.1007/978-94-011-3554-2_27
https://doi.org/10.1007/978-94-011-3554-2_27
Publikováno v:
Stellar Atmospheres: Beyond Classical Models ISBN: 9789401055741
The basic properties of horizontally stratified, homogeneous atmospheric models of cool dwarfs are compared with spectroscopic observations. Recent results of kinetic equilibrium calculations for stars of different metal abundances are discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f541b887ff08f199c68a7de8ef35873
https://doi.org/10.1007/978-94-011-3554-2_36
https://doi.org/10.1007/978-94-011-3554-2_36
Publikováno v:
Early Evolution of the Universe and its Present Structure ISBN: 9789027716620
Studies of quasar images which have adequate spatial resolution and reach sufficiently faint surface brightness levels indicate that virtually all low redshift (z ≲ 0.6) quasars are surrounded by faint nebulosities extending ∿ 3–20 arcsec from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4416e104662055b13c25424a35460006
https://doi.org/10.1007/978-94-009-7220-9_12
https://doi.org/10.1007/978-94-009-7220-9_12
Publikováno v:
Extragalactic Radio Sources ISBN: 9789401175678
Extragalactic Radio Sources ISBN: 9789400977839
Extragalactic Radio Sources ISBN: 9789400977839
A sample of 13 out of 15 low redshift (0.1 ≤ z ≤ 0.6) radio-loud quasars have been resolved on large-scale (19 arcsec mm-1), sky-limited (µR ∿ 26.5 mag sec-2) Kodak IIIa-F photographs obtained .with the ESO 3.6-m telescope. The QSO images were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0b7ff3fc571210e39d9d624d46ca8c9
https://doi.org/10.1007/978-94-011-7565-4_106
https://doi.org/10.1007/978-94-011-7565-4_106
Autor:
T. Gehren
Publikováno v:
Reviews in Modern Astronomy ISBN: 9783642741906
The precise determination of chemical abundances in stars is the key to a number of important disciplines in modern astrophysics including stellar evolution and nucleosynthesis as well as the chemical and dynamical evolution of the Galaxy. The basic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::072284efaac1604724be3b8fd4234847
https://doi.org/10.1007/978-3-642-74188-3_3
https://doi.org/10.1007/978-3-642-74188-3_3
Publikováno v:
Objects of High Redshift ISBN: 9789027711199
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3789d2a625d5ea18cc266a7cc06d8da1
https://doi.org/10.1007/978-94-009-9040-1_22
https://doi.org/10.1007/978-94-009-9040-1_22
Publikováno v:
Symposium - International Astronomical Union. 116:413-414
The massive stars of the Magellanic Clouds are of considerable current interest with regard to questions of initial mass function, star formation mechanisms, stellar evolution with mass loss and the chemical evolution of galaxies. The effective tempe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af733bf4f8109cb8f802f74d1fc96509
https://doi.org/10.1017/s0074180900149332
https://doi.org/10.1017/s0074180900149332
Publikováno v:
Die Naturwissenschaften. 62:95-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::475f09b74f4bc35e70832997ad50ce28
https://doi.org/10.1007/bf00592182
https://doi.org/10.1007/bf00592182