2001A&A...380L...1G

Query : 2001A&A...380L...1G

2001A&A...380L...1G - Astronomy and Astrophysics, volume 380, L1-4 (2001/12-2)

Discovery of new embedded Herbig-Haro objects in the ρ Ophiuchi dark cloud.

GROSSO N., ALVES J., NEUHAEUSER R. and MONTMERLE T.

Abstract (from CDS):

We report here the discovery of a 30"-chain of embedded Herbig-Haro (HH) objects in the ρ Ophiuchi dark cloud. These HH objects were first detected during a deep KS-band observation (completeness magnitude for point source ∼19) made with NTT/SOFI. We confirm their nature with follow-up observations made with H2 v=1-0 S(1) narrow-band filter. We argue that they belong to two different jets emanating from two Class I protostars: the main component of the recently resolved subarcsecond radio binary YLW 15 (also called IRS 43), and IRS 54. We propose also to identify the [SII] knot HH 224NW1 (Gomez et al., 1998AJ....115.2018G) as emanating from a counterjet of YLW15. The alignment between these HH objects and the thermal jet candidate found in YLW15 by Girart et al. (2000ApJ...544L.153G) implies that this jet is not precessing at least on timescale ~(2-4)x104yr.

Abstract Copyright: ∼

Journal keyword(s): open clusters and associations: rho Ophiuchi dark cloud - infrared: stars - infrared: ISM - stars: pre-main sequence - Herbig-Haro objects - ISM: jets and outflows

Nomenclature: Table 1, Fig.2c: [GAN2001] AN (Nos A1-A5, B1-B7, C1-C5).

Simbad objects: 43

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Number of rows : 43
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 [HMT98] AS 29-1 * 15 38 30.6278904192 +00 14 22.225285824           ~ 3 0
2 HH 312 HH 16 25 56.0 -24 20 47           ~ 7 1
3 HH 418 HH 16 26 13.6 -24 41 00           ~ 6 0
4 HH 419 HH 16 26 24.5 -24 30 50           ~ 7 0
5 NAME VLA 1623-243 Y*O 16 26 26.42 -24 24 30.0           ~ 404 0
6 [SSG2006] MMS002 smm 16 26 26.50 -24 24 30.9           ~ 241 0
7 HH 314 HH 16 26 39.0 -24 40 53           ~ 9 0
8 HH 79 HH 16 26 46.5 -24 20 25           ~ 11 0
9 [GWW98] HH 224 NW1 PoC 16 27 16.9 -24 46 10           ~ 3 0
10 BKLT J162716-244710 TT* 16 27 17.0735135784 -24 47 11.155084836   19.8   16.84 15.06 K1 27 0
11 YLW 15 Y*O 16 27 26.906 -24 40 50.81           ~ 268 1
12 NAME rho Oph B2 Cloud PoC 16 27 27.9 -24 26 29           ~ 82 1
13 BBRCG 53 Y*O 16 27 29.96424 -24 33 36.5688           ~ 21 0
14 BBRCG 60 Y*O 16 27 32.67576 -24 33 23.9328           ~ 35 0
15 BBRCG 61 Y*O 16 27 32.85048 -24 32 34.8324           ~ 33 0
16 IRAS 16245-2423 TT* 16 27 37.1906433768 -24 30 35.025246828       16.66 14.67 B5-F2 307 0
17 WLY 2-50 Y*O 16 27 38.1256099368 -24 30 42.980129964           ~ 33 0
18 [GAN2001] C3 PoC 16 27 42.7 -24 32 08           ~ 1 0
19 [GAN2001] C4 PoC 16 27 42.8 -24 32 07           ~ 1 0
20 [GAN2001] B3 PoC 16 27 42.8 -24 32 03           ~ 1 0
21 [GAN2001] B5 PoC 16 27 42.8 -24 32 01           ~ 1 0
22 [GAN2001] B4 PoC 16 27 42.9 -24 31 59           ~ 1 0
23 [GAN2001] B1 PoC 16 27 42.9 -24 31 56           ~ 1 0
24 [GAN2001] B6 PoC 16 27 42.9 -24 31 53           ~ 1 0
25 [GAN2001] C1 PoC 16 27 43.0 -24 32 07           ~ 1 0
26 [GAN2001] C5 PoC 16 27 43.0 -24 32 04           ~ 1 0
27 [GAN2001] B7 PoC 16 27 43.0 -24 31 50           ~ 1 0
28 [GAN2001] A4 PoC 16 27 43.0 -24 31 47           ~ 1 0
29 [GAN2001] A3 PoC 16 27 43.1 -24 31 45           ~ 1 0
30 HH 416 HH 16 27 43.2 -24 49 18           ~ 5 0
31 [GAN2001] C2 PoC 16 27 43.2 -24 32 13           ~ 1 0
32 [GAN2001] B2 PoC 16 27 43.2 -24 31 53           ~ 1 0
33 [GAN2001] A2 PoC 16 27 43.3 -24 31 44           ~ 1 0
34 [GAN2001] A5 PoC 16 27 43.4 -24 31 48           ~ 1 0
35 [GAN2001] A1 PoC 16 27 43.4 -24 31 45           ~ 1 0
36 [GY92] 350 Y*O 16 27 46.2923939352 -24 31 41.243157372           M7.5 42 0
37 YLW 52 Y*O 16 27 51.80472 -24 31 45.5304           ~ 70 0
38 WLY 2-55 TT* 16 27 52.0872222936 -24 40 50.723707476     16.28 14.48 12.78 K7.5 81 0
39 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3628 1
40 HH 417 HH 16 28 26.1 -24 28 01           ~ 5 0
41 HH 420 HH 16 28 38.3 -24 37 09           ~ 6 0
42 NAME HH 224NW1 HH ~ ~           ~ 3 0
43 NAME HH 224NW1 HH ~ ~           ~ 1 0

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