HOPS 254

Number of components: 1

Lbol (L)

Tbol (K)

Class

Distance (pc)

Zone

6.2

114.7

I

430.4

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-254

05:41:24.518

-07:55:07.41

308.89 ± 6.28

68.26

1.1

0.1

0.28 x 0.16

120.3

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-254

05:41:24.519

-07:55:07.44

0.68 ± 0.02

0.38

7.4

0.1

0.09 x 0.09

85.2

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-254

05:41:24.504

-07:55:07.32

309.54

280.07

4.7

-

-

-

 

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-254

102.7 ± 10.0

34.0 ± 10.0

230.3 ± 4.7

709.5 ± 22.9

1.25

0.55

2.6 ± 0.06

2.4 ± 0.29

 


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-254.