Looking for dust and molecules in Nova V4743 Sagittarii

Details Looking for dust and molecules in Nova V4743 Sagittarii Looking for dust and molecules in Nova V4743 Sagittarii

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...400l...5n&link_type=abstract

Astronomy and Astrophysics, v.400, p.L5-L8 (2003)

Astronomy and Astrophysics

Astrophysics

7

Ism: Dust, Ism: Molecules, Stars: Novae, Stars: Individual: V4743 Sgr

Scientific paper

We present 1.2 mm continuum images and spectral line observations of CO(1-0) and SiO(3-2) rotational transitions of the recent nova V4743 Sgr. The nova is detected at 1.2 mm showing a variable millimetre emission. Only upper limits of TA* = 0.06 K for CO and TA* = 0.03 K for SiO could be derived. We discuss the results in terms the nature of the millimetre emission favouring dust from a phase before the recent outburst as the likely radiating source. We also comment on the possibility of free-free emission from the ionised shell as the source of the measured millimetre radiation.
Based on observations collected with the Swedish ESO Submm Telescope at the European Southern Observatory, La Silla, Chile.

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