A 1.2 mm MAMBO survey of Post-AGB stars

Details A 1.2 mm MAMBO survey of Post-AGB stars A 1.2 mm MAMBO survey of Post-AGB stars

2006-10-13

arxiv.org/abs/astro-ph/0610399v1

Astronomy and Astrophysics

Astrophysics

10 pages, 4 figures, A&A in press

Scientific paper

10.1051/0004-6361:20065264

We performed a millimetric survey of a sample of 24 post-AGB stars aimed to search for emission from circumstellar matter, in order to investigate the physical properties of the outer parts of the envelopes. The observations were conducted using the 37-channel Max-Planck Millimeter Bolometer array at the 30-meter IRAM telescope. The continuum emission toward the detected sources was used to quantify the mass of the emitting dust. We combined our observations with data available in literature to construct the spectral energy distribution (SED) of the sources. When the observational data cover a spectral range wide enough, some properties of circumstellar envelopes were derived by comparison with spectra computed using a radiative transfer code. Of the 24 objects in our sample, we detected millimetric continuum emission toward 11 sources. Two other sources were detected at flux level close to 3$\sigma$. The derived circumstellar dust masses range between 0.4 and $24 \times 10^{-4}$ M$_{\odot}$, but these results are affected from the uncertain about the source distances. The parameters derived from the SED fits are consistent with the values characteristic for these kind of object. As confirmed from the flux density extrapolated in the first light channels of the Atacama Large Millimetric Array, such sources would be good targets for future high resolution mapping with the ALMA facility.

Affiliated with

Also associated with

No associations

Rating

A 1.2 mm MAMBO survey of Post-AGB stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A 1.2 mm MAMBO survey of Post-AGB stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A 1.2 mm MAMBO survey of Post-AGB stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-664108