J/A+A/543/A88 NGC7538IRS1 and NGC7538S 1.36mm maps (Beuther+, 2012)
The high-mass disk candidates NGC7538IRS1 and NGC7538S.
Beuther H., Linz H., Henning T.
<Astron. Astrophys. 543, A88 (2012)>
=2012A&A...543A..88B 2012A&A...543A..88B
ADC_Keywords: Stars, early-type ; Stars, luminous ; Millimetric/submm sources
Keywords: stars: formation - stars: early-type -
stars: individual: NGC 7538 IRS1 - stars: massive -
stars: individual: NGC 7538S
Abstract:
The nature of embedded accretion disks around forming high-mass stars
is one of the missing puzzle pieces for a general understanding of the
formation of the most massive and luminous stars.
We want to dissect the small-scale structure of the dust continuum and
kinematic gas emission toward two of the most prominent high-mass disk
candidates.
Description:
Using the Plateau de Bure Interferometer at ∼1.36mm wavelengths in
its most extended configuration we probe the dust and gas emission at
∼0.3" , corresponding to linear resolution elements of ∼800AU.
Objects:
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RA (2000) DE Designation(s)
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23 13 44.8 +61 26 51 NGC 7538 S = NGC 7538S
23 13 45.4 +61 28 12 NGC 7538 IRS 1 = NAME NGC 7538 IRS 1
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fits.dat 132 20 List of maps
maps/* . 20 Individual FITS maps (resolution: 0.05x0.05arcsec,
and 0.5km/s in velocity)
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Byte-by-byte Description of file: fits.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Source Source name (NGC7538IRS1 or NGC7538S)
13- 21 F9.5 deg RAdeg Right Ascension of center (J2000)
22- 30 F9.5 deg DEdeg Declination of center (J2000)
32- 35 F4.2 arcsec/pix Scale [0.05/0.07] Scale of the image
37- 40 I4 pix Nx [1024] Number of pixels along X-axis
41 A1 --- --- [x]
42- 45 I4 pix Ny [1024] Number of pixels along Y-axis
46 A1 --- --- [x]
47- 49 I3 --- Nz [32/160]? Number of velocity points
52- 56 F5.1 km/s Vrad Radial velocity (minimum for transitions)
58- 62 F5.1 km/s Vmax ? Maximum radial velocity
65- 93 A29 --- Title Transition observed (or continuum)
95- 97 I3 Mibyte Size [4/640] Size of the FITS file
99-132 A34 --- FileName Name of FITS file, in "maps" subdirectory
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Acknowledgements:
Henrik Beuther, beuther(at)mpia.de
(End) Patricia Vannier [CDS] 02-May-2012