1999A&A...347..565Z

Query : 1999A&A...347..565Z

1999A&A...347..565Z - Astronomy and Astrophysics, volume 347565-571 (1999/7-2)

Flows from young stars in the Serpens star forming region.

ZIENER R. and EISLOEFFEL J.

Abstract (from CDS):

We have surveyed an area of 3.15°2 in the Serpens star forming region with the Tautenburg Schmidt telescope in the [SII]λλ6716,6730 lines searching for outflows from young stars. We find that the outflow activity is mainly concentrated on a region of about 15' (1.3pc) diametre around the Serpens Reflection Nebula (SRN). Here, we discovered six new groups of HH objects in addition to the already known HH 106/107, probably forming five or six independent outflows. Much further away from the SRN we observed two more outflows: a newly discovered object about 45' south of the SRN near a group of nebulous stars, and the known HH 108/109, for which we present also near-infrared molecular hydrogen imaging. We discuss the potential exciting sources for the outflows in the Serpens dark clouds, and the connection between optical HH objects and molecular hydrogen knots observed in this region. We also note that there is only one parsec-scale flow seen among then HH flows in Serpens. We interpret this as the flows breaking rapidly out of their dense parental clouds into the very tenuous surroundings, in which no further shock excitation of the true terminal working surfaces can take place.

Abstract Copyright: ∼

Journal keyword(s): stars: formation - stars: winds, outflows - ISM: Herbig-Haro objects - ISM: jets and outflows

Nomenclature: HH NNN (Nos 455, 458-460, 476-478).

Simbad objects: 56

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Number of rows : 56
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LDN 1448 DNe 03 22.5 +30 35           ~ 546 0
2 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
3 NAME LDN 1641 North HII 05 36 17.6 -06 22 10           ~ 252 0
4 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
5 IRAS 18263+0027 IR 18 28 55.2 +00 29 28           ~ 6 0
6 HH 476 HH 18 28 59.5 +00 29 13           ~ 4 0
7 IRAS 18265+0028 cor 18 29 06.694 +00 30 31.24           ~ 17 0
8 HH 106E HH 18 29 18.7 +01 14 10           ~ 1 0
9 HH 106A HH 18 29 18.8 +01 14 17           ~ 1 0
10 HH 106 HH 18 29 18.8 +01 14 17           ~ 15 0
11 HH 106B HH 18 29 19.0 +01 14 16           ~ 1 0
12 HH 106F HH 18 29 19.6 +01 14 22           ~ 1 0
13 IRAS 18269+0116 Y*O 18 29 31.9758302760 +01 18 42.616775520           K6.5 44 0
14 HH 460C HH 18 29 38.1 +01 18 32           ~ 1 0
15 HH 477 HH 18 29 38.3 +01 20 24           ~ 2 0
16 HH 460 HH 18 29 38.6 +01 18 24           ~ 11 1
17 HH 460D HH 18 29 39.2 +01 18 19           ~ 1 0
18 HH 107A HH 18 29 47.7 +01 25 52           ~ 1 0
19 [HBR97] S7 PoC 18 29 47.9 +01 16 06           ~ 4 0
20 HH 107 HH 18 29 48.0 +01 25 55           ~ 10 0
21 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
22 V* V370 Ser Or* 18 29 49.24584 +01 16 31.5480           ~ 33 0
23 GCNM 23 Y*O 18 29 49.63 +01 15 21.9           ~ 291 2
24 [HBR97] S6 PoC 18 29 50.8 +01 15 16           ~ 3 0
25 [HBR97] S4 PoC 18 29 52.8 +01 14 56           ~ 3 0
26 NAME Ser Nebula RNe 18 29 56 +01 14.8           ~ 29 1
27 HH 478A HH 18 29 56.5 +01 15 41           ~ 1 0
28 HH 478 HH 18 29 56.543 +01 15 40.10           ~ 2 0
29 HH 478B HH 18 29 56.7 +01 15 34           ~ 1 0
30 IRAS 18274+0112 Y*O 18 29 57.73680 +01 14 05.6940           M4: 143 2
31 [EC92] 95 Y*O 18 29 57.893 +01 12 46.25           K1.0 79 3
32 HH 458A HH 18 29 58.0 +01 13 45           ~ 1 0
33 HH 458 HH 18 29 58.02 +01 13 43.2           ~ 5 1
34 HH 458B HH 18 29 58.1 +01 13 42           ~ 1 0
35 CK 8 TT* 18 29 59.2453548960 +01 14 07.611180936   19.7   16.9   K7.5 38 0
36 HH 455 HH 18 30 +01.3           ~ 5 1
37 2MASS J18300020+0114035 Y*O 18 30 00.206 +01 14 03.56           ~ 14 0
38 2MASS J18300065+0113402 Y*O 18 30 00.6502197504 +01 13 40.174218912           M0.5 27 0
39 HH 459A HH 18 30 02.6 +01 14 44           ~ 1 0
40 HH 459 HH 18 30 02.6 +01 14 45           ~ 7 1
41 HH 459B HH 18 30 02.7 +01 14 48           ~ 1 0
42 HH 455F HH 18 30 18.5 +01 15 36           ~ 1 0
43 HH 455E HH 18 30 18.7 +01 15 41           ~ 1 0
44 HH 455D HH 18 30 20.8 +01 16 01           ~ 1 0
45 HH 455B HH 18 30 22.4 +01 16 07           ~ 1 0
46 HH 455A HH 18 30 22.7 +01 16 18           ~ 1 0
47 HH 108A HH 18 35 36.2 -00 35 10           ~ 1 0
48 HH 108 HH 18 35 36.2 -00 35 09           ~ 19 0
49 HH 108B HH 18 35 36.6 -00 35 10           ~ 1 0
50 HH 108D HH 18 35 36.8 -00 34 59           ~ 1 0
51 HH 108C HH 18 35 37.0 -00 35 07           ~ 1 0
52 HH 108E HH 18 35 37.4 -00 34 51           ~ 1 0
53 HH 109B HH 18 35 38.1 -00 34 20           ~ 1 0
54 HH 109A HH 18 35 38.9 -00 34 22           ~ 1 0
55 HH 109 HH 18 35 39.0 -00 34 20           ~ 10 0
56 NAME Cep E HII 23 03 12.779 +61 42 25.75           ~ 183 0

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