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Table A.2:

A list of all known MHOs in Orion B.

Objecta 		RAa Deca Other IDb HHc Referencesd Comment Region
MHO 300 05 47 07.3 +00 22 40 ${\rm I A}$ - 27, 28 Main northeastern lobe of large NGC 2071 bipolar outflow Orion-B
MHO 301 05 46 59.0 +00 20 30 ${\rm I B}$ - 27, 28 southwestern lobe of large bipolar outflow in NGC 2071 (counter-flow to MHO 300) Orion-B
MHO 302 05 47 05.5 +00 21 45 ${\rm II A/II B}$ - 27, 28 Emission near IR source of MHO 300/301 (in NGC 2071 region) Orion-B
MHO 303 05 47 02.5 +00 22 30 ${\rm III}$ - 27, 28 Chain of knots and features extending to northwest from NGC 2071 Orion-B
MHO 304 05 47 03.7 +00 22 50 ${\rm IV A}$ - 28 Fainter jet running northeast-southwest, parallel with MHO 300/301 in NGC 2071 Orion-B
MHO 305 05 47 09.5 +00 24 30 ${\rm IV B}$ - 28 Possible extension of MHO 304 flow in NGC 2071 Orion-B
MHO 306 05 47 08.9 +00 24 00 ${\rm V}$ - 28 Small group of features in NGC 2071 Orion-B
MHO 307 05 47 11.0 +00 23 45 ${\rm - }$ - 28 Extension of large MHO 300 flow in NGC 2071 Orion-B
MHO 308 05 47 12.3 +00 22 00 ${\rm VI}$ - 28 20 $^{\prime\prime}$ long jet to east of main MHO 300/301 flow in NGC 2071 Orion-B
MHO 309 05 46 59.0 +00 19 20 ${\rm VII}$ - 28 Bow-shaped structure to south of large MHO 301 flow lobe in NGC 2071 Orion-B
MHO 310 05 47 14.0 +00 18 15 ${\rm VIII}$ - 28 1$^\prime$ long jet in southeast corner of NGC 2071 region Orion-B
MHO 311 05 47 01.3 +00 25 50 ${\rm XI A}$ - 28 North-south chain of knots in northwest corner of NGC 2071 (assoc. with MHO 309?) Orion-B
MHO 312 05 47 02.7 +00 28 10 ${\rm XI B}$ - 28 Filamentary structure in northwest NGC 2071, possible counter-flow to MHO 311 Orion-B
MHO 313 05 46 59.0 +00 26 15 ${\rm XII A}$ - 28 Small jet in northwest NGC 2071, counter-flow to MHO 314 Orion-B
MHO 314 05 47 02.5 +00 26 45 ${\rm XII B}$ - 28 Small jet in northwest NGC 2071, counter-flow to MHO 313 Orion-B
MHO 315 05 41 58.2 -01 13 36 ${\rm HH 91 A-V}$ HH 91 29 Bright, knotty HH object Orion-B
MHO 316 05 41 48.2 -01 13 37 ${\rm HH 91 X-Z}$ HH 91 29 Fainter curving filament, assoc. with MHO 315 Orion-B
MHO 317 05 51 25.3 +02 55 15 ${\rm - }$ HH 110 29, 30, 31 Collimated, knotty HH jet Orion-B
MHO 318 05 51 21.0 +02 55 45 ${\rm IRS 2}$ - 29, 31 Bipolar jet from IR source situated to northwest of HH 110 (MHO317) Orion-B
MHO 319 05 51 20.7 +02 55 27 ${\rm IRS 1}$ - 29, 31 Second north-south jet near HH 110, from IRAS 05487+0255 Orion-B
MHO 320 05 51 46.1 +02 48 30 ${\rm F,H,L,P, }$ HH 111 9, 29, 32, 33, 34, Well-known collimated, knotty, bipolar HH jet and molecular outflow Orion-B
      ${\rm CJ_1-CJ_3}$   35, 36    
MHO 321 05 51 46.5 +02 48 30 ${\rm B,C,X,Y,Z}$ HH 121 32, 33, 29, 36, 35 Knots in collimated flow that runs orthogonal to HH 111 Orion-B
MHO 322 05 46 07.8 -00 11 56 ${\rm - }$ - 24 Faint arc extending northward from SSV 61 in L 1630 (HH 24-26) Orion-B
MHO 323 05 46 09.3 -00 10 24 ${\rm - }$ HH 24A 37, 24, 38 Small jet from embedded Class 0 source in L 1630 Orion-B
MHO 324 05 46 08.0 -00 10 03 ${\rm - }$ HH 24B 24, 38 Finger of emission associated with SSV 63W IR source in L 1630 Orion-B
MHO 325 05 46 07.3 -00 13 25 ${\rm - }$ HH 25 24, 38, 21, 22 Knotty, curving, bipolar flow that crosses HH 26 (MHO 326) in L 1630 Orion-B
MHO 326 05 46 05.0 -00 14 37 ${\rm - }$ HH 26 24 38, 21, 22 Curving bipolar outflow that crosses HH 25 (MHO 325) in L 1630 Orion-B
MHO 327 05 54 09.8 +02 37 09 ${\rm A,B,C}$ HH 182A 39 Small group of faint knots/arcs Orion-B
MHO 328 05 18 16.8 +07 11 00 ${\rm - }$ - 26 Bow shock to west of nebulous source IRAS 05155+0707 Orion-B
MHO 329 05 18 14.6 +07 11 06 ${\rm - }$ - 26 Fainter, knotty bow shock to west of IRAS 05155+0707 (downwind of MHO 328) Orion-B
MHO 330 05 18 12.8 +07 11 21 ${\rm - }$ - 26 Group of knots/filaments to west of IRAS 05155+0707; assoc. with MHO 327/328? Orion-B
MHO 331 05 45 49.6 -00 05 12 ${\rm - }$ HH 19 11 Group of knots assoc with complex HH object Orion-B
MHO 332 05 46 11.0 -00 09 25 ${\rm D,G,N}$ HH 24 40 Faint bows extending northeastward from the main HH 24 region Orion-B
MHO 499 05 43 51.3 -01 02 55 ${\rm - }$ HH 212 41, 42, 43 Spectacular twin jets and bow shocks emanating from an embedded protostar Orion-B

Notes. (a) Catalogue reference for the Molecular Hydrogen emission-line Object (MHO), with coordinates. (b) Other acronyms and labels used in the literature. (c) Associated Herbig-Haro object, if any. (d) References to papers presenting near-IR images, listed chronologically (including papers citing other IDs); see the full list of references at the end of Table A15.


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