VACCA W.D., CUSHING M.C., RAYNER J.T. and SIMON T.
Abstract (from CDS):
W. D. Vacca and M. C. Cushing, Ames Research Center, NASA; and J. T. Rayner and T. Simon, University of Hawaii, report on a medium-resolution 0.8-4.9-micron spectrum of the near-infrared counterpart to IRAS 05436-0007 (cf. IAUC 8284), acquired on Mar. 8.25 UT using the NASA Infrared Telescope Facility (+ SpeX facility spectrograph) on Mauna Kea. The data show a broad absorption feature centered at 3.1 microns due to water ice (which has an optical depth of about 0.6) and a deep solid-state absorption at 4.7 microns of frozen CO. Also present are a number of emission lines in the Brackett and Paschen series of H I. The strong emission lines of Pa_delta and Pa_gamma exhibit prominent P-Cyg components. The CO overtone bands at 2.3 microns appear in emission, as do the Ca II infrared triplet lines at 0.85 micron. Lines of Mg I, Na I, Ca, and Fe are also seen in emission. Several He I lines present in absorption exhibit possible weak P-Cyg structure. The P-Cyg features, plus the appearance of the object in the 2MASS survey at the position of a previously known IRAS and millimeter-wave source (LMZ 12; cf. Lis et al. 1999, Ap.J. 527, 856), suggest that the current activity of the source may arise from the onset of a strong outflow or the recent breakout of a deeply embedded class-I object, rather than from an accretion episode of a young FU-Ori star.
(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases
Other object types:
Y*O
(2012AJ,HOPS,...),
smm
(2007MNRAS,JCMTSE,...),
X
(CXOU,2XMM,...),
*
(2021ApJ,AP,...),
IR
(HGBS,IRAS),
Or*
(2017ARep),
Y*?
(2007MNRAS),
V*
(V*),
cor
([NW2007]),
Rad
(LMZ),
NIR
(2MASS),
Opt
(SDSS)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
(redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
[error] : error of the corresponding value displayed before
(wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or '∼'(unknown)
quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
References (286 between 1850 and 2024) (Total 286)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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