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ISOCAM observations in the Lockman Hole . II. The 14.3 µm deep survey: Data reduction, catalogue and source counts
Elbaz, D.; Rodighiero, G.; Cesarsky, C. +3 more
We present a new analysis of the ISOCAM 14.3 µm deep survey in a 20 × 20 square arcmins area in the Lockman Hole. This survey is intermediate between the ultra-deep surveys and the shallow surveys in the ELAIS fields. The data have been analyzed with the method presented by Lari et al. (\cite{Lar01}). We have produced a catalogue of 283 sour…
X-ray spectroscopy of the W UMa-type binary VW Cephei
Gondoin, P.
VW Cephei, a W UMa-type binary system, was observed twice with a four week interval in October 2002 by the XMM-Newton space observatory. During the first observation, the source appears to be quiescent. A shallow dip in the X-ray light curve during primary eclipse indicates that the primary and secondary stars both contribute to the X-ray emission…
Integral field spectroscopy of extended Lyα emission from the DLA galaxy in Q2233+131
Jahnke, K.; Popović, L. Č.; Christensen, L. +5 more
This paper presents observations of an extended Lyman-α emission nebula surrounding the galaxy responsible for the Damped Lyman-α Absorption (DLA) line in the spectrum of the quasar
High resolution millimeter imaging of the proto-planetary nebula He 3-1475
Bachiller, R.; Forveille, T.; Cox, P. +2 more
We report high resolution (1 arcsec-2 arcsec) imaging of the CO 2-1 line and the millimeter continuum in the proto-planetary nebula He 3-1475. The observations reveal the presence of a massive (∼ 0.6 M⊙) envelope of molecular gas around the origin of the remarkable bipolar jet system seen in optical images with the HST. The CO kinematic…
Time-dependent ejection velocity model for the outflow of Hen 3-1475
Velázquez, P. F.; Raga, A. C.; Riera, A.
We present 2D axisymmetric and 3D numerical simulations of the proto-planetary nebula
An L0 dwarf companion in the brown dwarf desert, at 30 AU
Martín, E. L.; Ségransan, D.; Udry, S. +8 more
We present the discovery of an L0 companion to the nearby M1.5 dwarf G 239-25, at a projected distance of 31 AU. It is the faintest companion discovered so far in our adaptive optics survey of all known M dwarfs within 12 pc, and it lies at the stellar/substellar limit. Given the assumed age of the primary star, the companion is likely an extremel…
Late-type giant variables in NGC 6522, LMC and SMC. How do they differ?
Glass, I. S.; Schultheis, M.; Cioni, M. -R.
Complete samples of 2MASS stars in three fields of differing metallicities (and possibly differing age distributions) have been extracted and cross-correlated with MACHO and ISO data to determine their variability and mass-loss properties. In each MK histogram a fall-off in numbers is seen above the tip of the RGB. The luminosity of the…
Intrinsic absorbers in BL Lac objects: The XMM-Newton view
Page, M. J.; Branduardi-Raymont, G.; Blustin, A. J.
We present XMM-Newton observations of four BL Lac objects (
The global mass function of M 15
Pulone, L.; De Marchi, G.; Pasquali, A. +1 more
Data obtained with the NICMOS instrument on board the Hubble Space Telescope (HST) have been used to determine the H-band luminosity function (LF) and mass function (MF) of three stellar fields in the globular cluster M 15, located ∼7' from the cluster centre. The data confirm that the cluster MF has a characteristic mass of ∼0.3 M⊙, as…
The host galaxy of GRB 990712
Christensen, L.; Vreeswijk, P.; Gorosabel, J. +4 more
We present a comprehensive study of the z=0.43 host galaxy of