2003ApJ...583..330R


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.22CET19:36:06

2003ApJ...583..330R - Astrophys. J., 583, 330-333 (2003/January-3)

Very large array observations of proper motions in L1551 IRS 5.

RODRIGUEZ L.F., CURIEL S., CANTO J., LOINARD L., RAGA A.C. and TORRELLES J.M.

Abstract (from CDS):

Using high angular resolution (∼0".1) Very Large Array observations made at 2 cm during the period 1983 to 1998, we report the detection of proper motions in the components of the binary radio source in L1551 IRS 5. The absolute proper motions observed in these two protostars, of order 25 mas yr–1 or ∼17 km.s–1 at a distance of 140 pc, are very similar in magnitude and direction to those of T Tauri stars in the same region and are attributed to the large-scale motion of the parent molecular complex. The relative astrometry between the two components reveals orbital proper motions that suggest that the total mass and period of the binary system are ∼1.2 Mand ∼260 yr, respectively.

Abstract Copyright:

Journal keyword(s): Astrometry - ISM: Jets and Outflows - stars: individual (L1551 IRS 5)

CDS comments: fig.1 : Components N and S in LDN 1551 IRS 5 are respectively NAME LDN 1551 IRS 5A and NAME LDN 1551 IRS 5B

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 QSO B0400+258 QSO 04 03 05.58606763 +26 00 01.5028075     18 19.00   ~ 184 1
2 LDN 1551 DNe 04 31 30.0 +18 12 30           ~ 778 1
3 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 818 0
4 LDN 1527 DNe 04 39 53 +25 45.0           ~ 514 0
5 IRAS 04368+2557 Y*O 04 39 53.97816 +26 03 09.6804           ~ 242 0
6 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1071 1

    Equat.    Gal    SGal    Ecl

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2021.01.22-19:36:06

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