Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Dawson, Joanne"'
Autor:
Cala, Roldán A., Gómez, José F., Miranda, Luis F., Uscanga, Lucero, Breen, Shari L., Dawson, Joanne R., de Gregorio-Monsalvo, Itziar, Imai, Hiroshi, Qiao, Hai-Hua, Suárez, Olga
The evolution of asymptotic giant branch stars from the spherical symmetry into the diverse shapes of planetary nebulae (PNe) is a topic of intensive research. Young PNe provide a unique opportunity to characterize the onset of this transitional phas
Externí odkaz:
http://arxiv.org/abs/2208.09199
The hyperfine transitions of the ground-rotational state of the hydroxyl radical (OH) have emerged as a versatile tracer of the diffuse molecular interstellar medium. We present a novel automated Gaussian decomposition algorithm designed specifically
Externí odkaz:
http://arxiv.org/abs/2107.11922
Autor:
Tremblay, Chenoa D., Gray, Malcolm D., Hurley-Walker, Natasha, Green, James A., Dawson, Joanne R. Dawson R., Dickey, John M., Jones, Paul A., Tingay, Steven J., Wong, O. Ivy
We present new molecular modelling for 14NO and 15NO and a deep, blind molecular line survey at low radio frequencies (99-129 MHz). This survey is the third in a series completed with the Murchison Widefield Array (MWA), but in comparison with the pr
Externí odkaz:
http://arxiv.org/abs/2010.09868
Observations of the four $^{2}\Pi_{3/2},~J = 3/2$~ground state transitions of the hydroxyl radical (OH) have emerged as an informative tracer of molecular gas in the Galactic ISM. We discuss an OH spectral feature known as the `flip', in which the sa
Externí odkaz:
http://arxiv.org/abs/1911.03856
Autor:
Jameson, Katherine, McClure-Griffiths, Naomi, Liu, Boyang, Dickey, John, Staveley-Smith, Lister, Stanimirovic, Snezana, Dempsey, James, Dawson, Joanne, Denes, Helga, Bolatto, Alberto, Li, Di, Wong, Tony
We present the first results from the Small Magellanic Cloud portion of a new Australia Telescope Compact Array (ATCA) HI absorption survey of both of the Magellanic Clouds, comprising over 800 hours of observations. Our new HI absorption line data a
Externí odkaz:
http://arxiv.org/abs/1908.04787
Autor:
Breen, Shari, Contreras, Yanett, Dawson, Joanne, Ellingsen, Simon, Voronkov, Maxim, McCarthy, Tiege
We present observations of the 36- (4_-1 -> 3_0E) and 84-GHz (5_-1 -> 4_0 E) class I methanol maser transitions towards a sample of 94 known class I sites. These observations resulted in 93 and 92 detections in the 84- and 36-GHz transitions. While t
Externí odkaz:
http://arxiv.org/abs/1812.08290
Publikováno v:
A&A 599, A94 (2017)
Large-scale shocks formed by clustered feedback of young OB stars are considered an important source of mechanical energy for the ISM and a trigger of molecular cloud formation. Their interaction sites are locations where kinetic energy and magnetic
Externí odkaz:
http://arxiv.org/abs/1701.03696
Ground-state OH masers identified in the Southern Parkes Large-Area Survey in Hydroxyl were observed with the Australia Telescope Compact Array to obtain positions with high accuracy ($\sim$1\,arcsec). We classified these OH masers into evolved star
Externí odkaz:
http://arxiv.org/abs/1611.04584
Autor:
Green, Claire-Elise, Cunningham, Maria R., Green, James A., Dawson, Joanne R., Jones, Paul A., López-Sánchez, Ángel R., Verdes-Montenegro, Lourdes, Henkel, Christian, Baan, Willem A., Martín, Sergio
We present results from a study of the dense circum-nuclear molecular gas of starburst galaxies. The study aims to investigate the interplay between starbursts, active galactic nuclei and molecular gas. We characterise the dense gas traced by HCN, HC
Externí odkaz:
http://arxiv.org/abs/1601.02302
Autor:
Qiao, Hai-Hua, Walsh, Andrew J., Gomez, Jose F., Imai, Hiroshi, Green, James A., Dawson, Joanne R., Shen, Zhi-Qiang, Ellingsen, Simon P., Breen, Shari L., Jones, Paul A., Gibson, Steven J., Cunningham, Maria R.
We report on OH maser emission toward G336.644-0.695 (IRAS 16333-4807), which is a H2O maser-emitting Planetary Nebula (PN). We have detected 1612, 1667 and 1720 MHz OH masers at two epochs using the Australia Telescope Compact Array (ATCA), hereby c
Externí odkaz:
http://arxiv.org/abs/1512.00592