Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Ronald J. Reynolds"'
Publikováno v:
EAS Publications Series. 56:319-322
H-alpha emission from neutral halo clouds probes the radiation and hydrodynamic conditions in the halo. Armed with such measurements, we can explore how radiation escapes from the Galactic plane and how infalling gas can survive a trip through the ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced710fb693a473b32f3c585540397fc
https://doi.org/10.1051/eas/1256052
https://doi.org/10.1051/eas/1256052
Publikováno v:
EAS Publications Series. 56:213-220
Thick layers of warm, low density ionized hydrogen (i.e., the warm ionized medium or WIM) in spiral galaxies provide direct evidence for an interaction between the disk and halo. The wide-spread ionization implies that a significant fraction of the L
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff74ae298610861e2908e81f078f9ab
https://doi.org/10.1051/eas/1256034
https://doi.org/10.1051/eas/1256034
Autor:
S. Harvey Moseley, John C. Mather, Sergei I. Ipatov, Alexander Kutyrev, G. J. Madsen, Ronald J. Reynolds
Publikováno v:
Icarus. 194:769-788
The simulated Doppler shifts of the solar Mg I Fraunhofer line produced by scattering on the solar light by asteroidal, cometary, and trans-neptunian dust particles are compared with the shifts obtained by Wisconsin H-Alpha Mapper (WHAM) spectrometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::46293dd091bc5909b3b3df34b477e46d
https://doi.org/10.1016/j.icarus.2007.11.009
https://doi.org/10.1016/j.icarus.2007.11.009
Autor:
Kurt P. Jaehnig, Ronald J. Reynolds, Edwin J. Mierkiewicz, Fred L. Roesler, John M. Harlander
Publikováno v:
The Astrophysical Journal. 650:L63-L66
Using a newly developed spatial heterodyne spectrometer (SHS), we have obtained the first radial velocity resolved emission-line profiles of diffuse [O II] 3726 and 3729 ? emission lines from the warm (104 K) ionized component of our Galaxy's interst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48c356be52c389aa33b9b6c9806e1c63
https://doi.org/10.1086/508745
https://doi.org/10.1086/508745
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 68:1520-1552
Ground-based Fabry–Perot observations of the solar excited Balmer α emission line of neutral atomic hydrogen have become one of the primary means of studying the distribution and behavior of hydrogen in the thermosphere+exosphere. This first of tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc116dd764c59673dacb5aaab81d78e3
https://doi.org/10.1016/j.jastp.2005.08.024
https://doi.org/10.1016/j.jastp.2005.08.024
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 68:1553-1575
Long-term data sets are required to investigate sources of natural variability in the upper atmosphere. Understanding the influence of sources of natural variability such as the solar cycle is needed to characterize the thermosphere + exosphere, to u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::74f7ad421fcb016492e891ec85fc283b
https://doi.org/10.1016/j.jastp.2005.08.025
https://doi.org/10.1016/j.jastp.2005.08.025
Publikováno v:
The Astrophysical Journal. 633:295-308
We apply our three dimensional photoionization code to model Wisconsin H-alpha Mapper observations of the H II region surrounding the O9.5V star Zeta Oph. Our models investigate the porosity of the interstellar medium around zeta Oph and the effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a208692f6acdd9ac23b7adb9d3fa06ba
https://doi.org/10.1086/432831
https://doi.org/10.1086/432831
Autor:
Ronald J. Reynolds, L. M. Haffner
Publikováno v:
Symposium - International Astronomical Union. 201:116-125
Recently completed Hα surveys of large portions of the sky can be used to create maps of the free-free intensity distribution at high Galactic latitude that are independent of the spectral fits to the CMB data. This provides an opportunity to test t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::516b822f0d3f620b92297fa995c0ac4e
https://doi.org/10.1017/s0074180900216173
https://doi.org/10.1017/s0074180900216173
Autor:
Ronald J. Reynolds
Publikováno v:
Advances in Space Research. 34:27-34
The properties of widespread ionized gas in the disk and halo of the Milky Way have been explored through the detection of faint optical emission lines from hydrogen, helium, and trace atoms and ions within the gas. Observations reveal extensive regi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41f70a6ddacbcf587dc5770984b60eca
https://doi.org/10.1016/j.asr.2003.02.059
https://doi.org/10.1016/j.asr.2003.02.059
Publikováno v:
The Astronomical Journal. 124:3336-3339
We have used the Wisconsin Hα Mapper facility to measure the [O I] λ6300/Hα line intensity ratios for four O star H II regions: S27 (observation coordinates l = 63, b = +236), S252 (l = 1901, b = +06), S261 (l = 1941, b = -19), and S264 (l = 1951,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03477bffb9bb5667787f5d3dd4e3b713
https://doi.org/10.1086/344603
https://doi.org/10.1086/344603