Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994aj....108.2273g&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 108, no. 6, p. 2273-2275
Astronomy and Astrophysics
Astronomy
3
Emission Spectra, Herbig-Haro Objects, Jet Flow, Stellar Evolution, Astronomical Photography, H Alpha Line, Main Sequence Stars, Reflecting Telescopes, Sulfur
Scientific paper
An extended faint optical jet is associated with the compact emission region plus faint star known as HH 55. HH 55 is located in the Lupus 2 cloud 2 min SW of the well studied T Tauri star RU Lupi. The HH 55 jet extends 55 sec N and 35 sec S in PA 160 deg. The HH 55 star is an emission line star of spectral type M3.5. Its image in the emission lines of H-alpha and (S II) is slightly elongated by 2 sec - 3 sec to the S but in continuum light is symmetrical and pointlike ((full width at half maximum) (FWHM) = 1.7 sec). The star and jet have several features in common with the star and jet known as Sz 102 = Th 28 in the nearby Lupus 3 cloud. We suggest that these objects are representative of the late evolutionary stage of the HH jet-outflow phenomenon and point out that such objects may be quite common although difficult to detect. With Lbol approximately = 0.005 solar luminosity, and log Te approximately = 3.5, the HH 55 star is close to the main sequence and evolutionary tracks suggest an age of 3 x 107 yr.
Chen Wang-Ping
Graham John A.
No associations
LandOfFree
Aging jets from low-mass 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 Aging jets from low-mass stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aging jets from low-mass stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1325423