184 citations · 1.8k across the 60 of their papers we have counts for
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The nearby eclipsing stellar system delta Velorum - I. Origin of the infrared excess from VISIR and NACO imaging
Pierre Kervella, Frédéric Thévenin, Monika Petr-Gotzens
- Context: The triple stellar system delta Vel system presents a significant infrared excess, whose origin is still being debated. A large infrared bow shock has been discovered us…
HAWK-I imaging of the X-ray luminous galaxy cluster XMMU J2235.3-2557: The red sequence at z=1.39
C. Lidman, P. Rosati, M. Tanaka +7
We use HAWK-I, the recently-commissioned near-IR imager on Yepun (VLT-UT4), to obtain wide-field, high-resolution images of the X-ray luminous galaxy cluster XMMU J2235.3-2557 in t…
A deep look into the cores of young clusters I. sigma-Orionis
H. Bouy, N. Huelamo, E. L. Martin +9
Nearby young clusters are privileged places to study the star formation history. Over the last decade, the sigma-Orionis cluster has been a prime location for the study of young ve…
VLTI monitoring of the dust formation event of the Nova V1280 Sco
Olivier Chesneau, Dipankar Banerjee, F. Millour +13
We present the first high spatial resolution monitoring of the dust forming nova V1280 Sco performed with the Very Large Telescope Interferometer (VLTI). Spectra and visibilities w…
Optical and infrared properties of V1647 Orionis during the 2003-2006 outburst. I The reflection nebula
D. Fedele, M. E. van den Ancker, M. G. Petr-Gotzens +2
Aims: The recent outburst of the young eruptive star V1647 Orionis has produced a spectacular appearance of a new reflection nebula in Orion (McNeil's nebula). We present an optica…
Optical and infrared properties of V1647 Orionis during the 2003-2006 outburst. II. Temporal evolution of the eruptive source
D. Fedele, M. E. van den Ancker, M. G. Petr-Gotzens +1
The occurrence of new FU Orionis-like objects is fundamental to understand the outburst mechanism in young stars and their role in star formation and disk evolution. Our work is ai…
Interferometric observations of the multiple stellar system delta Velorum
A. Kellerer, M. G. Petr-Gotzens, P. Kervella +1
delta Velorum is a nearby (24pc) triple stellar system, containing a close, eclipsing binary (Aa, Ab) discovered in 2000. Multiple systems provide an opportunity to determine the s…
Binary Stars in the Orion Nebula Cluster
Rainer Koehler, Monika G. Petr-Gotzens, Mark J. McCaughrean +4
We report on a high-spatial-resolution survey for binary stars in the periphery of the Orion Nebula Cluster, at 5 - 15 arcmin (0.65 - 2 pc) from the cluster center. We observed 228…
Optical and Infrared Spectroscopy of SN 1999ee and SN 1999ex
Mario Hamuy, Jose Maza, Philip A. Pinto +17
We report optical and infrared spectroscopic observations of the Type Ia SN 1999ee and the Type Ib/c SN 1999ex, both of which were hosted by the galaxy IC 5179. For SN 1999ee we ob…