J/ApJ/774/22 CO observations of YSOs in NGC 1333 (Plunkett+, 2013)
CARMA observations of protostellar outflows in NGC 1333.
Plunkett A.L., Arce H.G., Corder S.A., Mardones D., Sargent A.I.,
Schnee S.L.
<Astrophys. J., 774, 22 (2013)>
=2013ApJ...774...22P 2013ApJ...774...22P
ADC_Keywords: YSOs ; Cross identifications ; Molecular clouds
Keywords: ISM: individual: NGC 1333; ISM: jets and outflows; ISM: molecules;
stars: formation; stars: protostars; techniques: interferometric
Abstract:
We present observations of outflows in the star-forming region
NGC 1333 using the Combined Array for Research in Millimeter-Wave
Astronomy (CARMA). We combined the 12CO and 13CO (1-0) CARMA
mosaics with data from the 14m Five College Radio Astronomy
Observatory to probe the central, most dense, and active region of
this protostellar cluster at scales from 5" to 7' (or 1000AU to 0.5pc
at a distance of 235pc). We map and identify 12CO outflows, and
along with 13CO data we estimate their mass, momentum, and energy.
Within the 7'x7' map, the 5" resolution allows for a detailed study of
morphology and kinematics of outflows and outflow candidates, some of
which were previously confused with other outflow emission in the
region. In total, we identify 22 outflow lobes, as well as 9 dense
circumstellar envelopes marked by continuum emission, of which 6 drive
outflows. We calculate a total outflow mass, momentum, and energy
within the mapped region of 6M☉, 19M☉ km/s, and
7x1044erg, respectively. Within this same region, we compare outflow
kinematics with turbulence and gravitational energy, and we suggest
that outflows are likely important agents for the maintenance of
turbulence in this region. In the earliest stages of star formation,
outflows do not yet contribute enough energy to totally disrupt the
clustered region where most star formation is happening, but have the
potential to do so as the protostellar sources evolve.
Description:
We observed with the Combined Array for Research in Millimeter-Wave
Astronomy (CARMA), in 2008 October and 2009 March, in the D- and
E-array configurations, mapping a 8.4'x8.2' region of NGC 1333,
centered at RAJ2000=03:29:01, DEJ2000=+31:15:00. We simultaneously
observed the J=1-0 transitions of 12CO (115.27GHz) in the upper
sideband (USB), and 13CO (110.20GHz) and C18O (109.78GHz) in the
lower sideband (LSB).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 166 58 YSOs and starless cores within the mapped region
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See also:
VII/7 : Lynds' Catalogue of Dark Nebulae (LDN) (Lynds 1962)
J/A+A/563/L2 : NGC1333-IRAS2A CALYPSO IRAM-PdBI 1mm maps (Maury+, 2014)
J/A+A/558/A58 : NGC 1333-IRAS 4A C18O, NO and O2 spectra (Yildiz+, 2013)
J/ApJ/744/6 : SONYC census of very low-mass NGC1333 objects (Scholz+, 2012)
J/AJ/140/266 : NGC 1333 X-ray luminous YSOs properties (Winston+, 2010)
J/ApJS/181/321 : Properties of Spitzer c2d dark clouds (Evans+, 2009)
J/ApJ/692/973 : Protostars in Perseus, Serpens and Ophiuchus (Enoch+, 2009)
J/AJ/136/1372 : Very low-mass YSOs in NGC 1333 (Oasa+, 2008)
J/MNRAS/387/954 : H2 imaging of NGC 1333, L1455, L1448 and B1 (Davis+, 2008)
J/ApJ/674/336 : Spitzer observations of NGC 1333 (Gutermuth+, 2008)
J/A+A/472/187 : 12CO outflows towards submm cores in Perseus (Hatchell+, 2007)
J/A+A/468/1009 : Star formation in Perseus. II. (Hatchell+, 2007)
J/ApJ/638/293 : 1.1mm sources in the Perseus Molecular Cloud (Enoch+, 2006)
J/A+A/440/151 : Observations at 850um in Perseus clusters (Hatchell+, 2005)
J/ApJS/125/427 : Radio sources in HH 7-11 region (Rodriguez+, 1999)
J/AJ/117/354 : OB associations from Hipparcos (de Zeeuw+, 1999)
J/AJ/111/1964 : JHK photometry of NGC1333 (Lada+, 1996)
J/A+AS/106/165 : Near-IR imaging photometry of NGC 1333 (Aspin+ 1994)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1 I1 --- Set [1/2] Subset (1=Classes S, 0, I or
2=classes F, II, III)
3- 28 A26 --- Name Source identifier (1)
30 A1 --- f_Name [gij] Remark (2)
32- 33 I2 h RAh [3] Hour of right ascension (J2000)
35- 36 I2 min RAm [28/29] Minute of right ascension (J2000)
38- 42 F5.2 s RAs Second of right ascension (J2000)
44 A1 --- DE- [+] Sign of declination (J2000)
45- 46 I2 deg DEd [31] Degree of declination (J2000)
48- 49 I2 arcmin DEm Arcminute of declination (J2000)
51- 55 F5.2 arcsec DEs Arcsecond of declination (J2000)
57- 59 A3 --- Class Classification (S=starless, F=flat-SED, or
Classes 0, I, II, III) from literature
61 A1 --- f_Class [d] Discrepent classes (2)
63-162 A100 --- OName Other names (1)
164-166 A3 --- n_OName [,cefh] Remark(s) (2)
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Note (1): Prefixes and associated references are:
"SVS" = Strom et al. (1976AJ.....81..314S 1976AJ.....81..314S;
<[SVS76] NGC 1333 NN> in Simbad);
"IRAS" = Jennings et al. (1987MNRAS.226..461J 1987MNRAS.226..461J; <[JCC87] IRAS N> in Simbad);
"ASR" = Aspin et al. 1994 (J/A+AS/106/165; in Simbad);
"MMS" = Chini et al. (1997A&A...325..542C 1997A&A...325..542C;
<[CRS97] HH 7-11 MMS N> in Simbad);
"VLA" = Rodriguez et al. (1997ApJ...480L.125R 1997ApJ...480L.125R; 1999, J/ApJS/125/427;
<[RAC97] VLA NN> in Simbad);
"SK" = Sandell & Knee (2001ApJ...546L..49S 2001ApJ...546L..49S; <[SK2001] NN> in Simbad);
"HRF" = Hatchell et al. 2007 (J/A+A/468/1009; <[HFR2007] NNN> in Simbad);
[GMM2008] = Gutermuth et al. 2008 (J/ApJ/674/336; <[GMM2008] NNN> in Simbad);
"Bolo" = Enoch et al. 2009 (J/ApJ/692/973;
<[EES2009] Per-emb NN> in Simbad);
"SSTc2d" = Evans et al. 2009 (J/ApJS/181/321; <[EDJ2009] NNNN> in Simbad).
Note (2): remarks as follows:
c = More than one protostar associated with a Bolocam source ("Bolo"), or
source is in a crowded region.
d = Source classification differs among references. In these cases, we assume
the classification from Evans et al. (2009, J/ApJS/181/321), but we give
the classifications for each reference, where appropriate.
e = SSTc2d classified as Class I based on α=0.62, but with high
TBol=1000K.
f = SVS 19 position is coincident, but Rodriguez et al. (1999, J/ApJS/125/427)
suggest that this is the G2 IV star BD +30 547 (=ASR 130).
g = Sources from different references within about 8".
h = SVS 18 from Strom et al. (1976AJ.....81..314S 1976AJ.....81..314S) is very near to two
identified sources such that we cannot distinguish to which it
corresponds.
i = Near IRAS 2B.
j = Near IRAS 4C.
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History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 25-Feb-2015