Second harmonic poloidal waves observed by Van Allen Probes in the dusk‐midnight sector

Autor: Kyungguk Min, R. J. Cohen, J. W. Manweiler, Aleksandr Ukhorskiy, A. Rualdo Soto-Chavez, Brian A. Larsen, J. Singer Howard, Seth G. Claudepierre, Kazue Takahashi, Harlan E. Spence

Publikováno v: Journal of Geophysical Research: Space Physics. 122:3013-3039

This paper presents observations of ultralow-frequency (ULF) waves from Van Allen Probes. The event that generated the ULF waves occurred 2 days after a minor geomagnetic storm during a geomagnetically quiet time. Narrowband pulsations with a frequen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::349cf387a842d60fd40f3702347ee52d
https://doi.org/10.1002/2016ja023770

THE 1665 MHZ OH MASER LINE TOWARD A YOUNG PROTOSTELLAR OBJECT

Autor: A. Mouner, Gary A. Fuller, Sandra Etoka, M. M. Behary, K. A. Edris, R. J. Cohen

Publikováno v: Al-Azhar Bulletin of Science- Basic Science Sector. 24:73-80

We preset spectral line observations using MERLIN interferometer towards the massive star forming region IRAS 05137+3919. The Multi Element Radio Linked Interferometer Network (MERLIN) is an array of radio telescopes spread across Great Britain. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2390cd3c71d9eeafe5d5db4fa924fa00
https://doi.org/10.21608/absb.2013.6579

OH masers towards IRAS 19092+0841

Autor: R. J. Cohen, K. A. Edris, Gary A. Fuller, Sandra Etoka

Publikováno v: Edris, K A, Fuller, G A, Etoka, S & Cohen, R J 2017, ' OH masers towards IRAS 19092+0841 ', Astronomy and Astrophysics, vol. 608, A80 . https://doi.org/10.1051/0004-6361/201629365

Context. Maser emission is a strong tool for studying high-mass star-forming regions and their evolutionary stages. OH masers in particular can trace the circumstellar material around protostars and determine their magnetic field strengths at milliar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a25dd3f426a7852970ae351c949ee634
https://doi.org/10.1051/0004-6361/201629365

Multibeam maser survey of methanol and excited OH in the Magellanic Clouds: new detections and maser abundance estimates

Autor: Gary A. Fuller, Malcolm Gray, Maxim Voronkov, M. R. W. Masheder, J. A. Yates, Antonio Chrysostomou, Michael A. Thompson, Shari Breen, D. Wong-McSweeney, J. L. Caswell, Michael G. Burton, Kate J. Brooks, Philip J. Diamond, James Green, R. J. Cohen, J. Cox, M. R. Pestalozzi, Simon Ellingsen, Chris Phillips, Naomi McClure-Griffiths, Derek Ward-Thompson, Melvin Hoare, L. Quinn, Andrew Walsh

Publikováno v: Monthly Notices of the Royal Astronomical Society. 385:948-956

We present the results of the first complete survey of the Large and Small Magellanic Clouds for 6668-MHz methanol and 6035-MHz excited-state hydroxyl masers. In addition to the survey, higher-sensitivity targeted searches towards known star-formatio

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62c0c4551ae71ec679ed438af7a44a96
https://doi.org/10.1111/j.1365-2966.2008.12888.x

Turbulent, steamy red supergiant winds

Autor: Indra Bains, Anna Bartkiewicz, Anita M. S. Richards, Marian Szymczak, Jeremy Yates, Malcolm Gray, E. Mendoza-Torres, H. J. van Langevelde, M. R. W. Masheder, R. J. Cohen, Sandra Etoka, Philip J. Diamond, Wouter Vlemmings, E. E. Lekht, Koji Murakawa

Publikováno v: Proceedings of the International Astronomical Union. 3:261-265

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 MERLIN and EVN/global VLBI. The water maser clouds are o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a932cacbe47275f42ed30fecefcdc10
https://doi.org/10.1017/s1743921307013105