Turbulent, steamy red supergiant winds (2008)
Richards, Anita M. S., Bains, Indra, Bartkiewicz, Anna, Cohen, R. Jim, Diamond, Philip J., Etoka, Sandra, ...
Rapidly-evolving red supergiants (RSG) lose half or more of their mass before ending their lives as supernovae. Masers allow us to study the mass loss from 4 nearby RSG in AU-scale detail using...
Turbulent, steamy red supergiant winds (2008)
Richards, Anita M. S., Bains, Indra, Bartkiewicz, Anna, Cohen, R. Jim, Diamond, Philip J., Etoka, Sandra, ...
Rapidly-evolving red supergiants (RSG) lose half or more of their mass before ending their lives as supernovae. Masers allow us to study the mass loss from 4 nearby RSG in AU-scale detail using...
Turbulent, steamy red supergiant winds (2008)
Richards, Anita M. S., Bains, Indra, Bartkiewicz, Anna, Cohen, R. Jim, Diamond, Philip J., Etoka, Sandra, ...
Rapidly-evolving red supergiants (RSG) lose half or more of their mass before ending their lives as supernovae. Masers allow us to study the mass loss from 4 nearby RSG in AU-scale detail using...
Turbulent, steamy red supergiant winds (2008)
Richards, Anita M. S., Bains, Indra, Bartkiewicz, Anna, Cohen, R. Jim, Diamond, Philip J., Etoka, Sandra, ...
Rapidly-evolving red supergiants (RSG) lose half or more of their mass before ending their lives as supernovae. Masers allow us to study the mass loss from 4 nearby RSG in AU-scale detail using...
Colin J. Lonsdale, Philip J. Diamond, Harding E. Shli, Carol J. Lonsdale
The parsec-scale OH megamaser emission in the lun]inous IR galaxy Arp 220 has been imaged in detail using a global VLBI array. Four major emission regions are revealed in the 1667 MHz line, each with...
Parra, Rodrigo, Conway, John E., Diamond, Philip J., Thrall, Hannah, Lonsdale, Colin J., Lonsdale, Carol J., ...
We report the first detection at multiple radio wavelengths (13, 6 and 3.6 cm) of the compact sources within both nuclei of the Ultra Luminous Infra-Red Galaxy Arp 220. We present the radio spectra...
VLBI images of 49 radio supernovae in Arp 220 (2006)
Lonsdale, Colin J., Diamond, Philip J., Thrall, Hannah, Smith, Harding E., Lonsdale, Carol J.
We have used a very long baseline interferometry (VLBI) array at 18 cm wavelength to image the nucleus of the luminous IR galaxy Arp 220 at ∼1 pc linear resolution, with very high sensitivity. The...
VLBI Images of 49 Radio Supernovae in Arp 220 (2006)
Lonsdale, Colin J., Diamond, Philip J., Thrall, Hannah, Smith, Harding E., Lonsdale, Carol J.
We have used a Very Long Baseline Interferometry (VLBI) array at 18cm wavelength to image the nucleus of the luminous IR galaxy Arp 220 at ~1 pc linear resolution, and with very high sensitivity. The...
Hagiwara, Yoshiaki, Diamond, Philip J, Miyoshi, Makoto, Rovilos, Emmanouel, Baan, Willem
Water vapor maser emission in the 6_{16}-5_{23} transition towards the narrow-line Seyfert 1 (NLS1) galaxy NGC 4051 has been discovered during an ongoing single-dish extragalactic water maser survey....
A birth and growth of a collimated molecular jet from an AGB star (2003)
Imai, Hiroshi, Diamond, Philip J.
With the VLBA, we have observed water masers associated with the OH/IR star, W43A, which trace a birth and growth of a molecular jet. The water masers exhibit the collimated distribution (1700 AU: 20...
VLBI Imaging of Luminous Infrared Galaxies: AGN Cores in Mrk231, UGC 5101 & NGC 7469 (2003)
Lonsdale, Carol J., Lonsdale, Colin J., Smith, Harding E., Diamond, Philip J.
We report 18cm VLBI continuum imaging observations at 5 mas resolution for UGC 5101, NGC 7469, and Mrk 231, all part of a sample of Luminous Infrared Galaxies which have been shown to have strong...
Location of H2O maser in the double-nuclei system of NGC6240 (2003)
Hagiwara, Yoshiaki, Diamond, Philip J., Miyoshi, Makoto
We performed VLA observations of the 22 GHz H2O maser emission in the merging galaxy NGC6240, which hosts the well-known double active nuclei. In a previous paper, we reported on the first solid...
Continuum and spectral line observations of the OH Megamaser galaxy Arp 220 (2003)
Rovilos, Emmanouel, Diamond, Philip J., Lonsdale, Colin J., Lonsdale, Carol J., Smith, Harding E.
We present MERLIN observations of the continuum (both 1.6 and 5 GHz) and OH maser emission towards Arp220. the correct spatial configuration of the various componnents of the galaxy is revealed. In...
The 3-D kinematics of water masers around the semiregular variable RT Virginis (2003)
Imai, Hiroshi, Shibata, Katsunori M., Marvel, Kevin B., Diamond, Philip J., Sasao, Tetsuo, Miyoshi, Makoto, ...
We report observations of water masers around the semiregular variable RT Virginis (RT Vir), which have been made with the Very Long Baseline Array (VLBA) of the National Radio Astronomy Observatory...
Hagiwara, Yoshiaki, Diamond, Philip J., Nakai, Naomasa, Kawabe, Ryohei
We present the first result of VLBI observations of the blueshifted water maser emission from the type 2 Seyfert galaxy NGC5793, which we combine with new and previous VLBI observations of continuum...