activity
20022019
most citedA giant exoplanet orbiting a very low-mass star challenges planet formation models

130 citations · 486 across the 17 of their papers we have counts for

collaborators
Showing astro-phShow all

5 papers · 1 filter

astro-ph2007★ 124 cited

The periodicity of the eta Carinae events

A. Damineli, M. F. Corcoran, D. J. Hillier +14

Extensive spectral observations of eta Carinae over the last cycle, and particularly around the 2003.5 low excitation event, have been obtained. The variability of both narrow and…

astro-ph2005★ 45 cited

Multi-periodic photospheric pulsations and connected wind structures in HD64760

A. Kaufer, O. Stahl, R. K. Prinja +1

We report on the results of an extended optical spectroscopic monitoring campaign on the early-type B supergiant HD64760 (B0.5Ib) designed to probe the deep-seated origin of spatia…

astro-ph2004★ 22 cited

VLT-UVES observations of the Balmer line variations of eta Carinae during the 2003 spectroscopic event

Kerstin Weis, Otmar Stahl, Dominik J. Bomans +3

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…

astro-ph2004★ 59 cited

A Change in the Physical State of Carinae?

K. Davidson, J. C. Martin, R. M. Humphreys +8

During Car's spectroscopic event in mid-2003, the stellar wind's bright H and H emission lines temporarily had a distinctive shape unlike that reported on any previous oc…

astro-ph2002★ 46 cited

Evidence for chemical evolution in the spectra of high redshift galaxies

D. Mehlert, S. Noll, I. Appenzeller +14

Using a sample of 57 VLT FORS spectra in the redshift range 1.37<z<3.40 (selected mainly from the FORS Deep Field survey) and a comparison sample with 36 IUE spectra of local (z ~…