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5 papers
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
The Event Horizon Telescope Collaboration
When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To…
HERSCHEL-HIFI spectroscopy of the intermediate mass protostar NGC7129 FIRS 2
D. Johnstone, M. Fich, C. McCoey +58
HERSCHEL-HIFI observations of water from the intermediate mass protostar NGC7129 FIRS 2 provide a powerful diagnostic of the physical conditions in this star formation environment.…
Excitation of the molecular gas in the nuclear region of M82
A. F. Loenen, P. P. van der Werf, R. Güsten +23
We present high resolution HIFI spectroscopy of the nucleus of the archetypical starburst galaxy M82. Six 12CO lines, 2 13CO lines and 4 fine-structure lines are detected. Besides…
Polarisation Observations of VY Canis Majoris Water Vapour 5{32}-4{41} 620.701 GHz Maser Emission with HIFI
Martin Harwit, Martin Houde, Paule Sonnentrucker +26
CONTEXT: Water vapour maser emission from evolved oxygen-rich stars remains poorly understood. Additional observations, including polarisation studies and simultaneous observation…
Herschel-PACS spectroscopy of the intermediate mass protostar NGC7129 FIRS 2
M. Fich, D. Johnstone, T. A. van Kempen +58
Aims: We present preliminary results of the first Herschel spectroscopic observations of NGC7129 FIRS2, an intermediate mass star-forming region. We attempt to interpret the observ…