Search

Near-infrared spectro-photometry, at a spectral resolution of ~100, allows to characterize a great variety of stellar sources, from late-type giants to emission line stars. Various components of the interstellar medium, including circumstellar environments and Planetary Nebulae, can also be traced. We propose AIFU, a fiber-fed nearinfrared low-resolution spectrograph. With a 1′×1′ field of view and a 2″ sampling, AIFU will be well suited to survey spectroscopically stellar populations in large areas of the Galaxy and of the Magellanic Clouds, as e.g. star-forming regions, as well as to image extended sources, like circumstellar shells around nearby evolved stars, PDRs, simultaneously in many different emission lines. [ABSTRACT FROM AUTHOR] more...

This is a brief summary of the 2nd ARENA conference, including statistical information and a short review of the talks. The conference ended up with the creation of 6 working groups aimed at preparing the final ARENA roadmap in the fields of astronomy and astrophysics where Antarctic atmospheric conditions at Dome C could lead to compelling scientific breakthroughs. The results of their reflections and recommendations will be presented at the third and final ARENA conference to be held in May 2009. [ABSTRACT FROM AUTHOR] more...

Near-infrared spectro-photometry, at a spectral resolution of ∼100, allows to characterize a great variety of stellar sources, from late-type giants to emission line stars. Various components of the interstellar medium can also be traced. This technique can therefore be very fruitful, in addition, for studies of star forming regions, the Milky Way and external galaxies. The outstanding environmental conditions that are expected at Dome C should be favorable to carry out spectro-photometric surveys in the 1 to 2.5 μm region, that would usefully complement space-borne projects. [ABSTRACT FROM AUTHOR] more...

Here are a few personnal thoughts as an introduction to the second conference of the ARENA network that will focus on the most promising astrophysical science cases at CONCORDIA/Dome C. [ABSTRACT FROM AUTHOR] more...

We present the main achievements of the ARENA network and a set of recommendations for the development of astronomy and astrophysics at CONCORDIA (Dome C) [ABSTRACT FROM PUBLISHER]

We report the discovery of a new M9.0 dwarf at only 8.2 pc, which we identified in our search for nearby ultracool dwarf ( , later than M8.0) in the DENIS data base. We measure a very high proper motion of 2.5 arcsec yr−1. The PC3 index measured from its low-resolution spectrum gives a spectrophotometric distance of 8.2 pc. This makes it the third closest M9.0 dwarf. [ABSTRACT FROM AUTHOR] more...