2016ApJ...831...69M


Query : 2016ApJ...831...69M

2016ApJ...831...69M - Astrophys. J., 831, 69-69 (2016/November-1)

The evolution of far-infrared CO emission from protostars.

MANOJ P., GREEN J.D., MEGEATH S.T., EVANS II N.J., STUTZ A.M., TOBIN J.J., WATSON D.M., FISCHER W.J., FURLAN E. and HENNING T.

Abstract (from CDS):

We investigate the evolution of far-IR CO emission from protostars observed with Herschel/PACS for 50 sources from the combined sample of HOPS and DIGIT Herschel key programs. From the uniformly sampled spectral energy distributions, whose peaks are well sampled, we computed the Lbol, Tbol, and Lbol/Lsmm for these sources to search for correlations between far-IR CO emission and protostellar properties. We find a strong and tight correlation between far-IR CO luminosity (LCOfir) and the bolometric luminosity (Lbol) of the protostars with LCOfir \proptoLbol\0.7. We, however, do not find a strong correlation between LCOfir and protostellar evolutionary indicators, Tbol and Lbol/Lsmm. FIR CO emission from protostars traces the currently shocked gas by jets/outflows, and far-IR CO luminosity, LCOfir, is proportional to the instantaneous mass-loss rate, \dotMout. The correlation between LCOfir and Lbol, then, is indicative of instantaneous \dotMout tracking instantaneous \dotMacc. The lack of a correlation between LCOfir and evolutionary indicators Tbol and Lbol/Lsmm suggests that \dotMout and, therefore, \dotMacc do not show any clear evolutionary trend. These results are consistent with mass accretion/ejection in protostars being episodic. Taken together with the previous finding that the time-averaged mass-ejection/accretion rate declines during the protostellar phase, our results suggest that the instantaneous accretion/ejection rate of protostars is highly time variable and episodic, but the amplitude and/or frequency of this variability decreases with time such that the time-averaged accretion/ejection rate declines with system age.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): ISM: jets and outflows - stars: jets - stars: protostars - stars: winds, outflows - stars: winds, outflows

Simbad objects: 68

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Number of rows : 68
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 LDN 1448 DNe 03 22.5 +30 35           ~ 498 0
2 NAME LDN 1455 IRS 1 cor 03 27 39.08 +30 13 03.1           ~ 151 0
3 2MASS J03280041+3008012 Y*O 03 28 00.411 +30 08 01.28           ~ 47 0
4 2MASS J03331284+3121241 Y*O 03 33 12.8440487256 +31 21 24.139522188           K0-M3 56 0
5 2MASS J03331667+3107548 Y*O 03 33 16.68 +31 07 54.9           ~ 111 2
6 JCMTSE J033317.8+310932 cor 03 33 17.85 +31 09 31.9           ~ 95 0
7 LDN 1489 DNe 04 04 47.5 +26 19 42           ~ 213 0
8 IRAS 04191+1523 Y*O 04 22 00.43944 +15 30 21.2148           ~ 195 0
9 RAFGL 5123 Y*O 04 31 34.07736 +18 08 04.9020           K3V/M3III 838 0
10 IRAS 04361+2547 Y*O 04 39 13.89288 +25 53 20.8788           ~ 190 1
11 IRAS 04365+2535 Y*O 04 39 35.19360 +25 41 44.7252           ~ 261 0
12 LDN 1527 DNe 04 39 53 +25 45.0           ~ 568 0
13 TMC-1 MoC 04 41 45.9 +25 41 27           ~ 1536 0
14 2MASS J05343542-0539589 Y*O 05 34 35.423 -05 39 58.96           ~ 11 0
15 HOPS 30 Y*O 05 34 44.0625 -05 41 25.638           ~ 9 0
16 HOPS 10 Y*O 05 35 09.0143 -05 58 27.526           ~ 15 0
17 HOPS 11 Y*O 05 35 13.4326 -05 57 58.154           ~ 16 0
18 HOPS 91 Y*O 05 35 18.98 -05 00 51.6           ~ 36 0
19 HOPS 56 Y*O 05 35 19.4586 -05 15 32.779           ~ 19 0
20 HOPS 409 Y*O 05 35 21.4590 -05 13 16.242           ~ 8 0
21 ISOY J053523.33-051203.4 Y*O 05 35 23.417 -05 12 02.34           ~ 34 0
22 HOPS 87 Y*O 05 35 23.500 -05 01 29.58           ~ 84 0
23 HOPS 394 Y*O 05 35 23.9685 -05 07 52.913           ~ 21 0
24 HOPS 68 Y*O 05 35 24.2999 -05 08 30.686           ~ 57 0
25 2MASS J05352477-0510296 Y*O 05 35 24.777 -05 10 29.61           ~ 49 1
26 NAME OMC-2 IRS 3 HII 05 35 26.00 -05 10 16.6           ~ 64 0
27 IRAS 05329-0505 Y*O 05 35 26.746 -05 03 55.08           ~ 83 0
28 2MASS J05352696-0510173 Y*O 05 35 26.967 -05 10 17.33         20.319 ~ 27 0
29 V* V2457 Ori Or* 05 35 26.97000 -05 09 54.4644         18.858 ~ 140 0
30 OMC 2 MoC 05 35 27 -05 10.1           ~ 432 1
31 HOPS 108 Y*O 05 35 27.07 -05 10 00.4           ~ 21 0
32 2MASS J05352762-0509337 Y*O 05 35 27.622 -05 09 33.78           ~ 88 0
33 TKK 870 Y*O 05 35 28.19 -05 03 41.2           ~ 44 0
34 HOPS 182 Y*O 05 36 18.83 -06 22 10.2           ~ 15 0
35 GBS-VLA J053622.86-064606.6 Y*O 05 36 22.84 -06 46 06.2           ~ 104 0
36 NAME Ori A MoC 05 38 -07.1           ~ 2861 0
37 LDN 1641 MoC 05 39.0 -07 00           ~ 461 0
38 HOPS 288 Y*O 05 39 55.95 -07 30 28.0           ~ 25 0
39 HOPS 405 Y*O 05 40 58.5060 -08 05 35.083           ~ 10 0
40 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1279 0
41 IRAS 05399-0121 Y*O 05 42 27.68 -01 20 01.0           ~ 40 0
42 HGBS J054245.4-011616 Y*O 05 42 45.20 -01 16 14.2           ~ 13 0
43 HOPS 397 Y*O 05 42 48.9250 -08 16 09.933           ~ 9 0
44 [KDJ2016] J054608.0-001220 Y*O 05 46 07.7 -00 12 21           ~ 19 0
45 HGBS J054610.0-001218 Y*O 05 46 10.0 -00 11 17           ~ 20 0
46 HGBS J054627.8-000053 Y*O 05 46 27.9 -00 00 52           ~ 23 0
47 2MASS J05463064-0002349 Y*O 05 46 30.645 -00 02 34.97           ~ 28 0
48 2MASS J05470160+0017594 Y*O 05 47 01.605 +00 17 59.43           ~ 15 0
49 2MASS J05475906+0035324 Y*O 05 47 59.067 +00 35 32.43           ~ 8 0
50 HGBS J054807.6+003349 Y*O 05 48 07.70 +00 33 50.8           ~ 12 0
51 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1000 1
52 BHR 71 MoC 12 01 36.810 -65 08 49.22           ~ 140 0
53 V* DK Cha Or* 12 53 17.2111480272 -77 07 10.736046012           F0 136 0
54 GSS 30 Y*O 16 26 21.38160 -24 23 04.0524           ~ 207 1
55 NAME VLA 1623-243 Y*O 16 26 26.42 -24 24 30.0           ~ 395 0
56 VSSG 30 Y*O 16 26 44.19504 -24 34 48.3492           ~ 132 0
57 Elia 2-29 Y*O 16 27 09.43032 -24 37 18.7716           ~ 276 1
58 YLW 16A Y*O 16 27 28.02744 -24 39 33.5052           K8 189 0
59 YLW 16B Or* 16 27 29.43528 -24 39 16.1892           ~ 105 0
60 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1021 2
61 NAME Serpens SMM 4 cor 18 29 57.1 +01 13 15           ~ 132 0
62 NAME SERPENS SMM 3 smm 18 29 59.7 +01 14 00           ~ 91 1
63 CHLT 3 * 19 01 48.10 -36 57 22.7           K6V 31 0
64 NAME Corona Australis Cloud MoC 19 01 51 -36 58.9           ~ 440 0
65 [NWA2005] SMM 1B Y*O 19 01 56.41 -36 57 28.0           ~ 85 1
66 LDN 663 DNe 19 36 55 +07 34.4           ~ 604 0
67 LDN 1157 DNe 20 39 06.4 +68 02 13           ~ 542 0
68 LDN 1014 cor 21 24 05.9 +49 59 07           ~ 92 0

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2022.08.10-06:21:04

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