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Table 3

Herbig-Haro objects in the Gulf of Mexico.

HHa α(J2000)b δ(J2000)b [S ii]c Hαc H2c Commentsd
636 20 57 45.5 43 52 47 y y n 2′ long
637 20 57 45.5 43 53 58 y y y strong center, fainter structure 30″ N
638 20 57 51.6 43 51 40 y y – strong knot plus filament
639 20 57 55.5 43 50 15 y y – strong bow-shock plus larger fainter structure 1′ SE
640 20 57 47.3 43 53 25 y y y extends to E and W, 1′ wide
641 20 57 52.7 43 54 02 y w n bow plus knot 7″ NW
642 20 57 55.5 43 54 07 y y n knot plus stucture  ~ 7″ wide
643 20 57 56.5 43 52 52 y w y  ~7″ wide
644 20 57 55.4 43 53 37 y y w filament, extends 30″ to NE
645 20 57 59.6 43 54 07 y y n extends to N and S, 40″ wide
646 20 58 01.4 43 53 07 y y n knot plus bow,  ~ 25″ wide
647 20 58 02.3 43 54 09 w n n weak,  ~ 20″ wide
648 20 58 01.8 43 52 17 y w n 3′ long chain of knots and filaments around HBC 721
649 20 58 12.5 43 53 03 y y n strong knot plus filaments 1′ to SW
650 20 58 13.0 43 53 14 y y n curved, extends 15 to S
651 20 58 11.0 43 52 28 w w – weak, 10″ long
652 20 58 14.9 43 53 49 w n w weak knot
653 20 58 16.4 43 53 40 y y n strong, points away from MKHα 10
654 20 58 16.9 43 53 33 y y n strong, stellar-like
655 20 58 17.1 43 53 47 y w y around star G4, 18″ wide
656 20 58 18.6 43 53 11 y w y weak, extends 35″ to SE
657 20 58 21.5 43 52 47 y w n 13 long
658 20 58 21.7 43 54 14 y y n chain of knots 36″ to NE
659 20 58 21.9 43 53 54 y y n knots, extends 30″ to NE
660 20 58 22.2 43 53 45 y w n knot plus faint stucture 10″ to NE
661 20 58 27.9 43 53 25 y w – knot plus larger sturcture 25″ to NE
662 20 58 30.3 43 54 09 y n – two knots, W and NE of star MKHα 29
663 20 58 29.0 43 51 35 w n – faint
952 20 56 23.2 43 43 55 w n – three weak knots across nebulous star
953 20 56 41.6 43 48 39 y y – very strong 24″ wide
954 20 56 57.6 43 40 38 w n – 12 SW from nebulous star
955 20 58 14.3 43 46 13 y n – triangular shape, 15 SE from nebulous star
956 20 57 02.8 43 41 46 y n – knot near nebulous star
957 20 58 26.5 43 54 00 w n – weak jet-like 25″ long, W from star MKHα 28
958 20 58 28.3 43 56 44 w n – chain of four knots 1′ long
p 20 56 21.0 43 47 33 w w – weak knots
p 20 57 21.0 43 49 28 w w – weak knots
p 20 58 06.4 43 53 01 w w n knot near MKHα 6
p 20 58 08.0 43 40 27 w ? – 10″ long structure, confusion with reflection area
p 20 58 24.1 43 50 43 w n – weak, similar to HH 663

Notes. 

(a)

HH 636 to 663 from 2002 observations, HH 952 to 958 from 2006 observations, p means possible HH objects that need confirmation.

(b)

The positions are measured at the brightest point.

(c)

Indicates if the flow is observed at each filter. y means yes, n means no, w means weak and - means it is out of the observed field in that filter.

(d)

Approximate description of how the HH object appears in the [S ii] image.

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