HOPS 250

Number of components: 2

Lbol (L)

Tbol (K)

Class

Distance (pc)

Zone

7.1

69.4

0

428.5

LDN 1641

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-250

05:40:48.849

-08:06:57.10

187.77 ± 4.15

26.32

0.63

0.2

0.32 x 0.19

43.4

HOPS-250-B

-

-

-

-

-

-

-

-

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-250

05:40:48.848

-08:06:57.07

0.25 ± 0.03

0.12

7.8

0.2

0.15 x 0.09

40.6

HOPS-250-B

05:39:46.618

-08:07:12.84

0.18 ± 0.01

0.15

13.6

36.5

0.06 x 0.03

31.5

ACA 0.87 mm

Source

RA

(J2000)

DEC

(J2000)

Integrated Flux Density

(mJy)

Peak Intensity

(mJy/beam)

RMS

(mJy/beam)

ΔΦV

(")

Decon. Size

(")

Decon. PA

(º)

HOPS-250

05:40:48.84

-08:06:57.24

228.04

183.18

4.53

-

-

-

 

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-250

117.2 ± 10.0

53.9 ± 10.0

133.9 ± 2.9

247.8 ± 28.0

2.00

1.40

2.8 ± 0.08

2.5 ± 1.01

HOPS-250-B

-

21.5 ± 10.0

-

183.9 ± 15.7

-

2.21

-

-0.8 ± 0.48

 


Sources next/close to me: -

Same source, other names: -


 

Source Images

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

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

Figure 1: HOPS-250.

 

Figure 2: HOPS-250-B.