Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Stahl, Otmar"'
Autor:
Casassus, Simon, Dickinson, Clive, Cleary, Kieran, Paladini, Roberta, Etxaluze, Mireya, Lim, Tanya, White, Glenn J., Burton, Michael, Indermuehle, Balt, Stahl, Otmar, Roche, Patrick
The rho Oph molecular cloud is undergoing intermediate-mass star formation. UV radiation from its hottest young stars heats and dissociates exposed layers, but does not ionize hydrogen. Only faint radiation from the Rayleigh-Jeans tail of ~10-100K du
Externí odkaz:
http://arxiv.org/abs/0809.3965
Autor:
Walborn, Nolan R., Stahl, Otmar, Gamen, Roberto C., Szeifert, Thomas, Morrell, Nidia I., Smith, Nathan, Howarth, Ian D., Humphreys, Roberta M., Bond, Howard E., Lennon, Daniel J.
The paradigmatic Luminous Blue Variable R127 in the Large Magellanic Cloud has been found in the intermediate, peculiar early-B state, and substantially fainter in visual light, signaling the final decline from its major outburst that began between 1
Externí odkaz:
http://arxiv.org/abs/0807.1456
Autor:
Stahl, Otmar, Weis, Kerstin, Bomans, Dominik J., Davidson, Kris, Gull, Theodore R., Humphreys, Roberta M.
We present spectroscopic observations with high spectral resolution of eta Car as seen by the SE lobe of the Homunculus nebula over the 2003.5 "spectroscopic event". The observed spectra represent the stellar spectrum emitted near the pole of the sta
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501634
Using the UVES echelle spectrograph at the ESO VLT we obtained two-dimensional high-resolution (R = 50 000) spectra of the edge-on disk objects HH30*, HK Tau B, and HV Tau C. For comparison purposes we also observed with the same equipment both the c
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501582
Autor:
Weis, Kerstin, Stahl, Otmar, Bomans, Dominik J., Davidson, Kris, Gull, Theodore R., Humphreys, Roberta M.
We present high spectral resolution echelle observations of the Balmer line variations during the 2003.5 ``spectroscopic event'' of eta Carinae. Spectra have been recorded of both eta Carinae and the Homunculus at the FOS4 position in its SE lobe. Th
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412453
Publikováno v:
Astron.Astrophys. 407 (2003) 473-484
Using the Uves echelle spectrograph at the ESO VLT, we observed the absorption line spectrum of the QSO 0103-260 in the Fors Deep Field. In addition to the expected Ly-alpha forest lines, we detected at least 16 metal absorption systems with highly d
Externí odkaz:
http://arxiv.org/abs/astro-ph/0306223
Autor:
Stahl, Otmar, Gaeng, Thomas, Sterken, Chris, Kaufer, Andreas, Rivinius, Thomas, Szeifert, Thomas, Wolf, Bernhard
Publikováno v:
Astron.Astrophys. 400 (2003) 279-292
We have spectroscopically monitored the galactic Luminous Blue Variable HD 160529 and obtained an extensive high-resolution data set that covers the years 1991 to 2002. During this period, the star evolved from an extended photometric minimum phase t
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212473
Autor:
Damineli, Augusto, Kaufer, Andreas, Wolf, Bernhard, Stahl, Otmar, Lopes, Dalton F., de Araujo, Francisco X.
We report the recovery of a spectroscopic event in eta Carinae in 1997/98 after a prediction by Damineli (1996). A true periodicity with P = 2020+-5 days (0.2% uncertainty) is obtained. The line intensities and the radial-velocity curve display a pha
Externí odkaz:
http://arxiv.org/abs/astro-ph/9912387
Akademický článek
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Publikováno v:
Proceedings of SPIE; Nov2008 Part 2, Issue 1, p70144H-70144H-6, 6p
