Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Varricatt, Watson P."'
The HH80-81 system is one of the most powerful jets driven by a massive protostar. We present new near-infrared (NIR) line imaging observations of the HH80-81 jet in the H$_2$ (2.122 $\mu$m) and [Fe II] (1.644 $\mu$m) lines. These lines trace not onl
Externí odkaz:
http://arxiv.org/abs/2211.08012
Autor:
Yoon, Sung-Yong, Herczeg, Gregory J., Lee, Jeong-Eun, Lee, Ho-Gyu, Johnstone, Doug, Varricatt, Watson, Tobin, John J., Peña, Carlos Contreras, Mairs, Steve, Hodapp, Klaus, Manoj, P., Osorio, Mayra, Megeath, S. Thomas, Team, the JCMT Transient
Observed changes in protostellar brightness can be complicated to interpret. In our JCMT~Transient monitoring survey, we discovered that a young binary protostar, HOPS 373, is undergoing a modest $30\%$ brightness increase at 850 $\mu$m, caused by a
Externí odkaz:
http://arxiv.org/abs/2202.05608
We report a historic Ks-band light curve spanning over three decades of the FUor PGIR20dci recently discovered by Hillenbrand et al. (2021) . We find some minor variability of the object prior to the FUor outburst, an initial rather slow rise in brig
Externí odkaz:
http://arxiv.org/abs/2201.02541
Autor:
Williams, Peredur M., Varricatt, Watson P., Chené, André-Nicolas, Corcoran, Michael F., Gull, Ted R., Hamaguchi, Kenji, Moffat, Anthony F. J., Pollock, Andrew M. T., Richardson, Noel D., Russell, Christopher M. P., Sander, Andreas A. C., Stevens, Ian R., Weigelt, Gerd
We present spectroscopy of the P~Cygni profile of the 1.083-micron He I line in the WC7 + O5 colliding-wind binary (CWB) WR 140 (HD 193793), observed in 2008, before its periastron passage in 2009, and in 2016-17, spanning the subsequent periastron p
Externí odkaz:
http://arxiv.org/abs/2102.09445
Autor:
Lee, Yong-Hee, Johnstone, Doug, Lee, Jeong-Eun, Herczeg, Gregory, Mairs, Steve, Varricatt, Watson, Hodapp, Klaus W., Naylor, Tim, Peña, Carlos Contreras, Baek, Giseon, Haas, Martin, Chini, Rolf, Team, The JCMT Transient
While young stellar objects sometimes undergo bursts of accretion, these bursts usually occur sporadically, making them challenging to study observationally and to explain theoretically. We build a schematic description of cyclical bursts of the youn
Externí odkaz:
http://arxiv.org/abs/2009.05268
Autor:
Hodapp, Klaus W., Denneau, Larry, Tucker, Michael, Shappee, Benjamin J., Huber, Mark E., Payne, Anna V., Do, Aaron, Lin, Chien-Cheng, Connelley, Michael S., Varricatt, Watson P., Tonry, John, Chambers, Kenneth, Magnier, Eugene
We report photometry and spectroscopy of the outburst of the young stellar object Gaia19bey. We have established the outburst light curve with archival Gaia G, ATLAS Orange, ZTF r-band and Pan-STARRS rizy-filter photometry, showing an outburst of app
Externí odkaz:
http://arxiv.org/abs/2008.03396
Autor:
Issac, Namitha, Tej, Anandmayee, Liu, Tie, Varricatt, Watson, Vig, Sarita, H., Ishwara Chandra C., Schultheis, Mathias, Nandakumar, Govind
A multiwavelength analysis of star formation associated with the extended green object, G19.88-0.53 is presented in this paper. With multiple detected radio and millimetre components, G19.88-0.53 unveils as harbouring a protocluster rather than a sin
Externí odkaz:
http://arxiv.org/abs/2007.15186
Autor:
Baek, Giseon, MacFarlane, Benjamin A., Lee, Jeong-Eun, Stamatellos, Dimitris, Herczeg, Gregory, Johnstone, Doug, Pena, Carlos Contreras, Varricatt, Watson, Hodapp, Klaus W., Chen, Huei-Ru Vivien, Kang, Sung-Ju
In the episodic accretion scenario, a large fraction of the protostellar mass accretes during repeated and large bursts of accretion. Since outbursts on protostars are typically identified at specific wavelengths, interpreting these outbursts require
Externí odkaz:
http://arxiv.org/abs/2004.05600
Autor:
Issac, Namitha, Tej, Anandmayee, Liu, Tie, Varricatt, Watson, Vig, Sarita, H., Ishwara Chandra C., Schultheis, Mathias
We present a multiwavelength study of the extended green object, G12.42+0.50 in this paper. The associated ionized, dust, and molecular components of this source are studied in detail employing various observations at near-, mid- and far-infrared, su
Externí odkaz:
http://arxiv.org/abs/1902.03724
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