Occur astronomically in gas around young and evolved stars, ... Geometric and statistical parallax. Distance estimates. Zeeman splitting. Measure magnetic fields ...
Valent n Bujarrabal (OAN) Jean-Francois Desmurs (OAN) K. B. Marvel (AAS) D. Boboltz (USNO) ... (3) Phases with respect to the optical maximum derived from the ...
Consider the Circinus galaxy... Jones et al. (1999) Veilleux ... In Circinus, conditions. support H2O masers in. an edge-on accretion disk. a nuclear outflow ...
A man-made maser is a device that sets up a series of atoms or molecules and ... and lasers have been oscillating for eons in interstellar space, on comets, and ...
Found in nearby star-forming galaxies, starbursts, and AGNs. ... Structures of exotic star-formation in outer galaxies. ... star-forming galaxy, hosting a low ...
in two star-forming regions, Cep A and W75N. A. Niezurawska, M. Szymczak 1, ... maser emission at Cep A and W75N, both transitions arise in the same gas volume, ...
In IRC 10011, R Leo y TX Cam, the spatial distribution of the v =1 J=1 0 and J=2 ... When detected, the line profile is composed of narrow peaks near or at the ...
Using masers as evolutionary probes in the G333 GMC (as well as some follow up work) Shari Breen, Simon Ellingsen, Ben Lewis, Melanie Johnston-Hollitt, Simon ...
Continuing VLA and VLBA Observations of the SiO Masers in V838 Monocerotis ... star is not thought to be a late-type giant or supergiant, the spectrum of ...
Pumping Regimes of. Class I Methanol Masers. A.M. Sobolev, A.B. Ostrovskii (Ural ... Preliminary theoretical analysis of the pumping shows that the lines of ...
Variable SiO Masers in the Circumstellar Environment of V838 Monocerotis ... star is not thought to be a late-type giant or supergiant, the spectrum of ...
'Onion model' Dust at few AU. Molecules until. dissociation by UV. Excitation varies. SiO at few AU ... magnetic shaping of the outflow (Garc a-Segura, 1999) ...
13-04-2005. Magnetic Fields in the Envelopes of Late-Type Stars: ... Also fit for scaled down replica of total power. due to intrumental effects. Rule out systematics: ...
... and parallax (black) and with the Hipparcos proper motion and parallax (red) ... parallax. The motion of the most blue-shifted. 1667 MHz OH maser spot of U Her ...
High Resolution Observations in B1-IRS: ammonia , CCS and water masers. Claire Chandler, NRAO ... dynamics and evolution at high resolution. - Test CCS vs NH3 ...
Asymmetric Planetary Nebulae IV. La Palma, Canary Islands. Water Fountains in Pre-Planetary Nebulae ... Outflow velocity of water masers extremely high ...
Asymmetric Planetary Nebulae IV. La Palma, Canary Islands. Water Fountains in Pre-Planetary Nebulae ... Outflow velocity of water masers extremely high ...
Supernovae and Masers in Arp220: Pushing the limits of VLBI sensitivity. P.J.Diamond (JBO) ... Merger events 'caught in the act', but very heavily obscured ...
Title: 6.7 GHz Methanol Masers and the GBT Author: D. Jagadheep Last modified by: D. Jagadheep Created Date: 9/2/2006 9:28:54 PM Document presentation format
masers - IRS-I 1 and IRS-I 2 - NH3 peaks. 6-pointed stars - mid ... 44 GHz Class I CH3OH masers. X - 6.7 GHz Class II CH3OH maser. X - faint 3.6 cm source ...
Paul Jones (UNSW) Molecular Lines from dense molecular clouds regions (and OH 1720) ... with red giant stars, and hundreds of masers in star formation regions. ...
Phil Diamond, MERLIN/JBO. Huib Jan van Langevelde, JIVE/Leiden. Jos -Maria Torrelles, CSIC-IEEC ... MERLIN (Gallimore et al. 2003) Masers in the high mass ...
Magnetic pressure estimated from OH maser Zeeman splitting is significant in ... (c) close-up of core. PASJ 37, 515. Model of OH masers and polarization ...
MASERS: Lines are very narrow and measurements accurate but ... Main Disperser section. Crossdisperser section #1. To Crossdisperser section #2. QuantEYE ...
Galactic Giant Molecular Cloud (GMC) complexes are among the largest objects ... The UCHII closest to the center has hydroxyl, water and 6.7 GHz methanol masers ...
Title: Can extra-solar planets be detected with mm interferometry? Author: Vincent Minier Last modified by: Vincent Minier Created Date: 12/4/2001 4:30:19 AM
First results from HOPS (The H2O southern Galactic Plane Survey) Andrew Walsh (JCU) ... Kate Brooks (ATNF) Chris Phillips (ATNF) Shari Breen (UTas) ...
Found in several different places in the universe: Star-forming regions. Circumstellar shells around late-type stars. Active Galactic Nucleii. Supernova Remnants ...
Water fountains: cites of stellar jet's birth. W43A: an AGB star having a jet and an envelope ... Water fountains: cites of. on-going jet formation. V(H2O) ...
Title: Recent Advances in Astrometry with the VLBA Author: mark reid Last modified by: mark reid Created Date: 2/10/2005 1:54:39 PM Document presentation format
Towards a 3% Geometric Distance to NGC 4258 ... The Big Picture ... X-ray absorbing layer (nH ~ 1023 cm-2) radius = 0.29 pc where disk crosses line ...
Astrometry fairly standard. Chapman et al. in prep, 2002. 2 arcsec. OH 127.8 ... Able to do OH maser astrometry with 3 mas accuracy. also on red-shifted spots ...
Follow philosophy of MALT pilot study: Observe range of targets in variety ... molecular species towards various finder charts of high mass star forming cores. ...
Physical properties of the maser region. Magnetic fields around evolved stars ... Intrinsic properties of the maser region. VLBA linear polarization results ...
... lie in a ring of radius. r~22pc. Velocity field confirms ... Spectral index map using 1.3 Global VLBI and 5 GHz VLBA observations. free-free optical depth: ...
Radio-IR Astrometry ... Radio/submm observations of the ISM can complement PILOT's capabilities, ... Large FOV facilitates astrometry with radio maps. ...