Probing discs around massive young stellar objects with CO first overtone emission [PDF]
, 2010 We present high resolution (R~50,000) spectroastrometry over the CO 1st overtone bandhead of a sample of seven intermediate/massive young stellar objects.
de Wit, W. J. +5 more
core +2 more sources
DECaPS and SMA Discovery of a Highly Inclined Class I Young Stellar Object with an Outflow: IRAS 08235–4316 [PDF]
The Astronomical JournalWe present images of IRAS 08235–4316 with the Dark Energy Camera Plane Survey (DECaPS; spanning 0.398–1.034 μ m, at ∼1″ resolution) and the Submillimeter Array (SMA; at 1.38 mm (217 GHz) and ∼1 $\mathop{.}\limits^{^{\prime\prime} }$ 9 × 1 $\mathop ...
Joshua Bennett Lovell +6 more
doaj +2 more sources
Young Stellar Object Candidates in IC 417
The Astronomical Journal, 2023 IC 417 is in the Galactic plane, and likely part of the Aur OB2 association; it is ∼2 kpc away. Stock 8 is one of the densest cluster constituents; off of it to the east, there is a “nebulous stream” (NS) that is dramatic in the infrared (IR).
L. M. Rebull +14 more
doaj +1 more source
Stable Coronal X-Ray Emission over 20 yr of XZ Tau
The Astronomical Journal, 2023 XZ Tau AB is a frequently observed binary young stellar object in the Taurus Molecular Cloud; XZ Tau B has been classified as an EXOr object. We present new Chandra/HETG-ACIS-S observations of XZ Tau AB, complemented with variability monitoring of the ...
Steven M. Silverberg +5 more
doaj +1 more source
A Gigantic Mid-infrared Outburst in an Embedded Class I Young Stellar Object J064722.95+031644.6
The Astrophysical Journal, 2023 We report the serendipitous discovery of a giant mid-infrared outburst from a previously unknown source near a star-forming region in the constellation Monoceros.
Tinggui Wang +6 more
doaj +1 more source
X3: A High-mass Young Stellar Object Close to the Supermassive Black Hole Sgr A*
The Astrophysical Journal, 2023 To date, the proposed observation of young stellar objects (YSOs) in the Galactic center still raises the question of where and how these objects could have formed due to the violent vicinity of Sgr A*.
Florian Peißker +12 more
doaj +1 more source
Unveiling the circumstellar environment towards a massive young stellar object [PDF]
, 2013 As a continuation of a previous work, in which we found strong evidence of massive molecular outflows towards a massive star forming site, we present a new study of this region based on very high angular resolution observations with the aim of ...
Fariña, C., Ortega, M. E., Paron, S.
core +3 more sources
Luminosity Outburst of a High-mass Young Stellar Object Triggered by the Surrounding Radiation Field
The Astrophysical Journal Letters, 2023 We present observations of the 6.7 GHz methanol and 4.8 GHz formaldehyde masers toward the high-mass young stellar object G24.33+0.14 (hereafter G24). Our observations were conducted from 2019 to 2021 using the Shanghai Tianma 65 m Radio Telescope and ...
Jun-Ting Liu +10 more
doaj +1 more source
IRAS22150+6190: A POORLY STUDIED YOUNG STAR
Odessa Astronomical Publications, 2016 Many young stellar objects have been discovered in the course of the InfraRed Astronomical Satellite (IRAS) mission, which observed almost the entire sky in four photometric bands between 12 and 100 microns in 1989.
K. S. Kuratov +3 more
doaj +1 more source
Measuring the ionisation fraction in a jet from a massive protostar
Nature Communications, 2019 The ionisation fraction of protostellar jets is key to establish their true energetics. Here, the authors determine it in a jet from a high-mass young stellar object, using multi-wavelengths observations, confirming that the ionising mechanism giving ...
R. Fedriani +9 more
doaj +1 more source