J/A+A/672/A113 The SOUL view of IRAS20126+4104 (Massi+ 2023)
The SOUL view of IRAS 20126+4104.
Kinematics and variability of the H2 jet from a massive protostar.
Massi F., Caratti o Garatti A., Cesaroni R., Sridharan T.K., Ghose E.,
Pinna E., Beltran M.T., Leurini S., Moscadelli L., Sanna A., Agapito G.,
Briguglio R., Christou J., Esposito S., Mazzoni T., Miller D., Plantet C.,
Power J., Puglisi A., Rossi F., Rothberg B., Taylor G., Veillet C.
<Astron. Astrophys. 672, A113 (2023)>
=2023A&A...672A.113M 2023A&A...672A.113M (SIMBAD/NED BibCode)
ADC_Keywords: Protostars ; YSOs ; Infrared sources ; Photometry, hydrogen-line
Keywords: stars: formation - ISM: jets and outflows -
ISM: individual objects: IRAS 20126+4104 -
instrumentation: adaptive optics - infrared: ISM
Abstract:
We exploit the increased sensitivity of the recently installed
adaptive optics SOUL at the LBT to obtain new high-spatial-resolution
near-infrared images of the massive young stellar object
IRAS20126+4104 and its outflow. We used both broad-band (Ks, K') and
narrow-band (Brγ, H_2)) observations from a number of
near-infrared cameras (UKIRT/UFTI, SUBARU/CIAO, TNG/NICS, LBT/PISCES,
and LBT/LUCI1) to derive maps of the continuum and the H2 emission
in the 2.12 micron line. Three sets of images, obtained with adaptive
optics systems (CIAO, in 2003; FLAO, in 2012; SOUL, in 2020), allowed
us to derive the proper motions of a large number of H2 knots along
the jet. Photometry from all images was used to study the jet
variability.
Description:
The FITS files contain all images used in the analysis including those
of the standard star FS149 used to calibrate the SOUL photometry.
Objects:
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RA (2000) DE Designation(s)
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20 14 25.9 +41 13 37 IRAS20126+4104 = IRAS 20126+4104
20 00 39.2 +29 58 38 FS149 = HD 333240
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
list.dat 137 27 List of fits images
fits/* . 27 Individual fits images
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See also:
J/ApJS/219/41 : VLA + Chandra obs. of IRAS20126+4104 region (Montes+, 2015)
Byte-by-byte Description of file: list.dat
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Bytes Format Units Label Explanations
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1- 9 F9.5 deg RAdeg Right Ascension of center (J2000)
10- 18 F9.5 deg DEdeg Declination of center (J2000)
20- 25 F6.4 arcsec/pix scale Scale of the image
27- 30 I4 --- Nx Number of pixels along X-axis
32- 35 I4 --- Ny Number of pixels along Y-axis
37- 60 A24 "datime" Obs.date Observation date
62- 66 I5 Kibyte size Size of FITS file
68- 99 A32 --- FileName Name of FITS file, in subdirectory fits (1)
101-106 A6 --- Tel Telescope name
108-113 A6 --- Inst Instrument/camera name
115-118 A4 --- AO Adaptive optics system name (2)
120-122 A3 --- Filter Filter name (3)
124-137 A14 --- Name Target name
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Note (1): stdfs149kssoul2020_06.fits contains the subtraction of two
frames with the standard star in different positions.
Note (2): 'no' means no AO system used.
Note (3): Filters as follows:
H2 = narrowband, 2.12 micron)
BrG = narrowband, 2.16 micron)
Kcont = narrowband, 2.28 micron)
K98 = broadband, 2.2 micron)
Kp = broadband, 2.12 micron)
Ks = broadband, 2.15-2.17 micron)
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Acknowledgements:
Fabrizio Massi, fabrizio.massi(at)inaf.it,
INAF - Osservatorio Astrofisico di Arcetri, Italy
References:
Sridharan et al., 2005ApJ...631L..73S 2005ApJ...631L..73S
Cesaroni et al., 2005A&A...434.1039C 2005A&A...434.1039C
Caratti o Garatti et al., 2008A&A...485..137C 2008A&A...485..137C
Cesaroni et al., 2013A&A...549A.146C 2013A&A...549A.146C
(End) Fabrizio Massi [INAF - OAA], Patricia Vannier [CDS] 22-Jan-2023