2024ApJ...977L..31W

Query : 2024ApJ...977L..31W

2024ApJ...977L..31W - Astrophys. J., 977, L31 (2024/December-3)

A Tale of Three: Magnetic Fields along the Orion Integral-shaped Filament as Revealed by the JCMT BISTRO Survey.

WU J., QIU K., POIDEVIN F., BASTIEN P., LIU J., CHING T.-C., BOURKE T.L., WARD-THOMPSON D., PATTLE K., JOHNSTONE D., KOCH P.M., ARZOUMANIAN D., LEE C.W., FANCIULLO L., ONAKA T., HWANG J., LE GOUELLEC V.J.M., SOAM A., TAMURA M., TAHANI M., ESWARAIAH C., LI H.-B., BERRY D., FURUYA R.S., COUDE S., KWON W., LIN S.-J., WANG J.-W., HASEGAWA T., LAI S.-P., BYUN D.-Y., CHEN Z., CHEN H.-R.V., CHEN W.P., CHEN M., CHO J., CHOI Y., CHOI Y., CHOI M., CHRYSOSTOMOU A., CHUNG E.J., DAI S., DI FRANCESCO J., DIEP P.N., DOI Y., DUAN H.-Y., DUAN Y., EDEN D., FIEGE J., FISSEL L.M., FRANZMANN E., FRIBERG P., FRIESEN R., FULLER G., GLEDHILL T., GRAVES S., GREAVES J., GRIFFIN M., GU Q., HAN I., HAYASHI S., HOANG T., HOUDE M., INOUE T., INUTSUKA S.-I., IWASAKI K., JEONG I.-G., KONYVES V., KANG J.-H., KANG M., KAROLY J., KATAOKA A., KAWABATA K., KIM S., KIM M.-R., KIM K.H., KIM K.-T., KIM J., KIM H., KIM G., KIRCHSCHLAGER F., KIRK J., KOBAYASHI M.I.N., KUSUNE T., KWON J., LACAILLE K., LAW C.-Y., LEE H., LEE C.-F., LEE S.-S., LEE J.-E., LI D., LI D., LI G., LIU S.-Y., LIU T., LIU H.-L., LU X., LYO A.-R., MAIRS S., MATSUMURA M., MATTHEWS B., MORIARTY-SCHIEVEN G., NAGATA T., NAKAMURA F., NAKANISHI H., NGOC N.B., OHASHI N., PARK G., PARSONS H., PERETTO N., PRIESTLEY F., PYO T.-S., QIAN L., RAO R., RAWLINGS J., RAWLINGS M., RETTER B., RICHER J., RIGBY A., SADAVOY S., SAITO H., SAVINI G., SETA M., SHARMA E., SHIMAJIRI Y., SHINNAGA H., TANG Y.-W., TANG X., THUONG H.D., TOMISAKA K., TRAM L.N., TSUKAMOTO Y., VITI S., WANG H., WHITWORTH A., XIE J., YANG M.-Z., YEN H.-W., YOO H., YUAN J., YUN H.-S., ZENKO T., ZHANG G., ZHANG C.-P., ZHANG Y., ZHOU J., ZHU L., DE LOOZE I., ANDRE P., DOWELL C.D., EYRES S., FALLE S., ROBITAILLE J.-F. and VAN LOO S.

Abstract (from CDS):

As part of theB-fields In Star-forming Region Observations survey, we present James Clerk Maxwell Telescope (JCMT) 850 μm polarimetric observations toward the Orion integral-shaped filament (ISF) that covers three portions known as OMC-1, OMC-2, and OMC-3. The magnetic field threading the ISF seen in the JCMT POL-2 map appears as a tale of three: pinched for OMC-1, twisted for OMC-2, and nearly uniform for OMC-3. A multiscale analysis shows that the magnetic field structure in OMC-3 is very consistent at all the scales, whereas the field structure in OMC-2 shows no correlation across different scales. In OMC-1, the field retains its mean orientation from large to small scales but shows some deviations at small scales. Histograms of relative orientations between the magnetic field and filaments reveal a bimodal distribution for OMC-1, a relatively random distribution for OMC-2, and a distribution with a predominant peak at 90∘ for OMC-3. Furthermore, the magnetic fields in OMC-1 and OMC-3 both appear to be aligned perpendicular to the fibers, which are denser structures within the filament, but the field in OMC-2 is aligned along with the fibers. All these suggest that gravity, turbulence, and magnetic field are each playing a leading role in OMC-1, 2, and 3, respectively. While OMC-2 and 3 have almost the same gas mass, density, and nonthermal velocity dispersion, there are on average younger and fewer young stellar objects in OMC-3, providing evidence that a stronger magnetic field will induce slower and less efficient star formation in molecular clouds.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Star formation - Interstellar magnetic fields - Interstellar clouds - Polarimetry

Simbad objects: 27

goto Full paper

goto View the references in ADS

Number of rows : 27
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 NAME f-Shaped Filament in Orion Cld 05 35.0 -05 30           ~ 133 0
2 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
3 NAME OMC-1 MoC 05 35 14 -05 22.4           ~ 1249 2
4 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2421 1
5 NAME Ori Trapezium OpC 05 35 16.5 -05 23 14           ~ 1708 1
6 [CRW97] OMC-3 MMS 1 Y*O 05 35 18.030 -05 00 17.77           ~ 33 0
7 [TUK93] 3 Y*O 05 35 18.32712 -05 00 32.9400           ~ 80 2
8 HOPS 91 Y*O 05 35 18.98 -05 00 51.6           ~ 47 0
9 2MASS J05351997-0501024 Y*O 05 35 19.97 -05 01 02.5           ~ 48 0
10 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 301 1
11 NAME Orion Bright Bar reg 05 35 22.30 -05 24 33.0           ~ 1004 0
12 HOPS 88 Y*O 05 35 22.4451 -05 01 14.123           ~ 71 1
13 [MWZ90] OMC-2 FIR 6 IR 05 35 22.6 -05 12 37           ~ 25 0
14 HOPS 87 Y*O 05 35 23.500 -05 01 29.58           ~ 123 0
15 HOPS 68 Y*O 05 35 24.2999 -05 08 30.686           ~ 67 0
16 [TSO2008] 24 Y*? 05 35 24.6 -05 07 53           ~ 26 0
17 NAME OMC-2 IRS 3 HII 05 35 26.00 -05 10 16.6           ~ 68 0
18 [TSO2008] 18 mm 05 35 26.0 -05 05 42           ~ 47 1
19 JCMTSE J053526.4-050521 cor 05 35 26.5 -05 05 17           ~ 29 1
20 IRAS 05329-0505 Y*O 05 35 26.746 -05 03 55.08           ~ 103 0
21 V* V2457 Ori Or* 05 35 26.97000 -05 09 54.4644         18.858 ~ 166 0
22 OMC 2 MoC 05 35 27 -05 10.1           ~ 475 1
23 2MASS J05352762-0509337 Y*O 05 35 27.622 -05 09 33.78           ~ 128 0
24 [CRW97] OMC-3 MMS 10 cor 05 35 31.91 -05 05 51.1           ~ 30 0
25 NAME OMC-2/3 reg 05 35 33.0 -05 00 32           ~ 101 0
26 OMC 4 MoC 05 36 06 -05 35.7           ~ 80 0
27 NAME Ori A MoC 05 38 -07.1           ~ 3187 0

To bookmark this query, right click on this link: simbad:objects in 2024ApJ...977L..31W and select 'bookmark this link' or equivalent in the popup menu