The formation of a T Tauri star - Observations of the infrared source in L1551

Details The formation of a T Tauri star - Observations of the infrared source in L1551 The formation of a T Tauri star - Observations of the infrared source in L1551

Apr 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...245..589b&link_type=abstract

Astrophysical Journal, Part 1, vol. 245, Apr. 15, 1981, p. 589-592.

Astronomy and Astrophysics

Astronomy

49

Infrared Astronomy, Molecular Clouds, Nebulae, Stellar Evolution, T Tauri Stars, Energy Distribution, Herbig-Haro Objects, Luminosity, Main Sequence Stars, Mass Flow

Scientific paper

Observations at 5 to 25 microns show that the object discovered by Strom et al. (1976) at 2.2 microns within the densest part of the L1551 dark cloud is a strong source of radiation from grains as cool as 130 K. The energy distribution resembles that of infrared objects embedded within other molecular cloud cores, but implies a total luminosity of only 30 solar luminosities. The luminosity of the source and its proximity to the other T Tauri stars suggests that it is a 1-2 solar-mass premain-sequences star still swaddled within the L1551 cloud. The radio and optical evidence for mass motions around IRS 5 may mean that IRS 5 has been flaring in FU Ori-type eruptions within the last 1000 years.

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