HOPS 70

Number of components: 5

Lbol (L⊙)

Tbol (K)

Class

Distance (pc)

Zone

6.0

619.3

Flat

392.8

OMC 2

ALMA 0.87 mm

Source

RA

(J2000)

DEC

(J2000)

Integrated Flux Density

(mJy)

Peak Intensity

(mJy/beam)

RMS

(mJy/beam)

ΔΦA

(")

Decon. Size

(")

Decon. PA

(º)

HOPS-70-A-A

05:35:22.406

-05:08:05.14

35.89 ± 0.54

28.45

0.26

0.4

0.05 x 0.05

13.4

HOPS-70-A-B

 05:35:22.426 -05:08:05.03 3.37 ± 0.54 2.73 0.26 0.3 - -

HOPS-70-B-A

 - - ≤ 0.77 ≤ 0.77 0.31 4.6 - -

HOPS-70-B-B

 05:35:22.571 -05:08:00.32 7.89 ± 0.53 6.43 0.32 5.1 0.07 x 0.03 51.2

HOPS-70-C

05:35:21.938

-05:08:04.58

8.63 ± 0.84

3.77

0.40

7.1

0.17 x 0.07

78.3

VLA 9 mm

Source

RA

(J2000)

DEC

(J2000)

Integrated Flux Density

(mJy)

Peak Intensity

(mJy/beam)

RMS

(µJy/beam)

ΔΦV

(")

Decon. Size

(")

Decon. PA

(º)

HOPS-70-A-A

05:35:22.406

-05:08:05.14

0.29 ± 0.02

0.22

9.64

25.5

0.05 x 0.04

72.2

HOPS-70-A-B

05:35:22.426

-05:08:05.03

0.04 ± 0.01

0.03

9.57

25.2

0.03 x 0.01

104.4
HOPS-70-B-A 05:35:22.562

-05:08:00.72

 0.13 ± 0.01 0.12 8.93 21.6 0.03 x 0.01 104.4
HOPS-70-B-B 05:35:22.571

-05:08:00.32

  0.07 ± 0.01 0.06 8.90 21.4 0.03 x 0.01 104.4
HOPS-70-C 05:35:21.938

-05:08:04.58

 ≤ 0.03 ≤ 0.03 16.90 31.7 - -

ACA 0.87 mm

Source

RA

(J2000)

DEC

(J2000)

Integrated Flux Density

(mJy)

Peak Intensity

(mJy/beam)

Mean RMS

(mJy/beam)

ΔΦV

(")

Decon. Size

(")

Decon. PA

(º)

HOPS-70

05:35:22.416

-05:08:04.92

98.48

41.04

4.4

-

-

-

 

ALMA and VLA Derived Parameters

Source

R2σ, ALMA

(au)

R2σ, VLA

(au)

MD, ALMA

(M⊕)

MD, VLA

(M⊕)

QALMA

QVLA

Spectral Index

(0.87 – 9 mm)

Spectral Index

(8.1 -10 mm)

HOPS-70-A-A

17.3 ± 10.0

16.3 ± 10.0

22.5 ± 0.3

253.4 ± 19.3

19.3

19.84

2.1 ± 0.07

3.1 ± 0.48

HOPS-70-A-B

-

 10.0 ± 10.0

2.1 ± 0.3

33.2 ± 9.0

-

14.506

1.9 ± 0.13

2.2 ± 1.46

HOPS-70-B-A

 -  10.0 ± 10.0 ≤ 0.6 110.1 ± 8.4 - 4.375 - -0.6 ± 0.67

HOPS-70-B-B

 22.7 ± 10.0  10.0 ± 10.0 4.9 ± 0.4 62.0 ± 8.4 85.19 7.76 2.0 ± 0.08 2.4 ± 0.97

HOPS-70-C

 56.0 ± 10.0 - 5.4 ± 0.8 ≤ 29.4 63.010 -  - -

 

Sources next/close to me: -

Same source, other names: Source 12 (Díaz-Rodríguez et al).

 

Source Images

Left: ALMA (0.87 mm), Right: VLA (9 mm) (Tobin et al. 2020).
 

Figure 1: HOPS-70-A-B at south west and HOPS-B-A at north east.

 

Figure 2: HOPS-70-A-B at north east and HOPS-70-A-A at west.

 

Figure 3: HOPS-70-B-B at north and HOPS-B-A at south.

 

Figure 4: HOPS-70-A-B at north east, HOPS-70-B-A at south east and HOPS-70-C at west.

 

Figure 5: HOPS-70-C.

 

ACA (0.87 mm) (Federman et al. 2022).

Figure 6: HOPS-70.

 

 

Source 12

 

RA(J2000) DEC(J2000)

Decon. Size

(" x ")

Decon PA

(º)

Flux Density 2014

(mJy)

Flux Density 2015

(mJy)

 Spectral Index

Nature

Evolved Stage

 Other Names
5 cm 3 cm 1.3 cm 0.7 cm 5 cm
05:35:22.5628 ± 0.0007 -05:08:00.741 ± 0.011 0.28 x 0.16 45 ± 17 0.063 ± 0.013 0.066 ± 0.016 - - 0.26 ± 0.03 0.1 ± 0.6  Class I/II? -

 

VLA  (5 cm, black contours) (Díaz-Rodriguez to be submitted).

Figure 7: Source 12. Superposition of the VLA A-configuration map with natural weighting at 5cm (black contours, Díaz-Rodriguez to be submitted) over ALMA emission at 870 micron (red contours, Tobin et al 2020).

 

Scattered dust emission as observed by the HST (Habel et al. 2021 ApJ, 911, 153).

Figure 8.