Temporal changes of the IRS 5 jet in L1551

Details Temporal changes of the IRS 5 jet in L1551 Temporal changes of the IRS 5 jet in L1551

Nov 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987apj...322l..27n&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 322, Nov. 1, 1987, p. L27-L30.

Astronomy and Astrophysics

Astrophysics

40

Charge Coupled Devices, Nebulae, Periodic Variations, Plasma Jets, Pre-Main Sequence Stars, Stellar Spectrophotometry, Image Processing, Spectrum Analysis

Scientific paper

CCD images obtained in 1983, 1985, and 1987 show that a new knot has appeared in the L1551/IRS 5 jet about 1.5 arcsec away from the central star after 1983. This result suggests that the outflow process is ongoing. The whole knot system is shown to have moved away from the central star about 1 arcsec in four years, corresponding to a tangential velocity of 190 km/sec. It is noted that the appearance of the knot system has not changed substantially since 1983.

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