Other
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002rmxaa..38..187p&link_type=abstract
Revista Mexicana de Astronomía y Astrofísica Vol. 38, pp. 187-192 (2002) (http://www.astroscu.unam.mx/~rmaa/)
Other
7
Ism: Jets And Outflows, Stars: Formation, Stars: Mass Loss, Radio Continuum: Stars
Scientific paper
We analyze VLA-A observations made at 6 cm towards the Cepheus A star-forming region at three epochs: 1982.4, 1986.4, and 1990.2. We confirm that the thermal jet Cep A HW2 shows clear time variability in flux density and morphology. The radio-continuum source R5 is located about 0''.6 south of Cep A HW2 and seems to be the exciting source of the expanding bubble of H[2]O masers detected with the VLBA. Our maps of the region suggest that the source R5 was considerably weaker in 1982.4 than in the other two later epochs, showing for the first time evidence of its time variability. This variability is consistent with that expected for an expanding H II region. We speculate that the ``turn on'' of the source R5 between 1982.4 and 1986.4 may be related with an enhancement in the mass loss of the nearby thermal jet Cep A HW2 during the same epoch.
Cantó Jorge
Curiel Salvador
Porras Alicia
Rodriguez Luis F.
Torrelles Jose Maria
No associations
LandOfFree
Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A 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 Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for Time Evolution in the Exciting Source of the Expanding Water Maser Bubble in Cepheus A will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1861874