Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Fred L. Roesler"'
Autor:
Menelaos Sarantos, S. D. Robertson, M. A. Gallant, Ronald J. Oliversen, N. J. Derr, Fred L. Roesler, Edwin J. Mierkiewicz, D. C. P. Kuruppuaratchi, S. A. Rosborough
Publikováno v:
Geophysical Research Letters. 46:6964-6971
We observed lunar exospheric potassium D1 (7,698.9646 A) emissions using a high-spectral resolution Fabry-Perot spectrometer in 2014. We present the first potassium line profile measurements, which are representative of the potassium velocity distrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::329d2bb861627c71863bdda47754d274
https://doi.org/10.1029/2019gl083022
https://doi.org/10.1029/2019gl083022
Autor:
S. M. Nossal, M. A. Gallant, Edwin J. Mierkiewicz, A. R. Zacharias, Alan G. Burns, Fred L. Roesler, Liying Qian
Publikováno v:
Journal of Geophysical Research: Space Physics. 124:4525-4538
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1d09a626d7d14c636288f5344f57b06
https://doi.org/10.1029/2018ja026426
https://doi.org/10.1029/2018ja026426
Autor:
S. Rosborough, C. W. Freer, L. C. Spalsbury, D. D. Gardner, Fred L. Roesler, Menelaos Sarantos, M. A. Gallant, Ronald J. Oliversen, Edwin J. Mierkiewicz, O. L. Lupie, Nickolas J. Derr, D. C. P. Kuruppuaratchi
Publikováno v:
Journal of Geophysical Research: Planets. 123:2430-2444
We present the first comprehensive set of lunar exospheric line width and line width derived effective temperatures as a function of lunar phase (66° waxing phase to 79° waning phase). Data were collected between November 2013 and May 2014 during s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d257cd206e1fb99a1515c841fc717174
https://doi.org/10.1029/2018je005717
https://doi.org/10.1029/2018je005717
Autor:
D. Gardner, L. M. Haffner, Fred L. Roesler, S. M. Nossal, Edwin J. Mierkiewicz, Kurt P. Jaehnig, John M. Harlander
Publikováno v:
Journal of Geophysical Research: Space Physics. 122:1373-1385
A new, high-resolution field-widened spatial heterodyne spectrometer (FW-SHS) designed to observe geocoronal Balmer α (Hα, 6563 A) emission was installed at Pine Bluff Observatory (PBO) near Madison, Wisconsin. FW-SHS observations were compared wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bdefe2feb84d151ebbfe58d3b62ce6a9
https://doi.org/10.1002/2016ja022625
https://doi.org/10.1002/2016ja022625
Publikováno v:
Journal of Geophysical Research: Space Physics. 119:6642-6647
Geocoronal H α and H β intensity measurements using the Wisconsin H α Mapper Fabry-Perot are used to determine the intensity of the H α cascade component. From basic atomic physics and the work of Meier (1995), we show that the total cascade in g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::702e45a845efdecd2bf6e20750b95fdd
https://doi.org/10.1002/2014ja020026
https://doi.org/10.1002/2014ja020026
Publikováno v:
Journal of Geophysical Research: Space Physics. 119:4950-4956
We have applied high-resolution Fabry-Perot spectroscopy to the study of the lunar sodium exosphere for the study of exospheric effective temperature and velocity variations. Observing from the National Solar Observatory McMath-Pierce Telescope, we u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b6e923bcd2554dc5455d8e4e5ddb9cc
https://doi.org/10.1002/2014ja019801
https://doi.org/10.1002/2014ja019801
Autor:
Edwin J. Mierkiewicz, Michael R. Line, Fred L. Roesler, L. M. Haffner, Ronald J. Oliversen, Jody K. Wilson
Publikováno v:
Icarus. 219:609-617
The lunar sodium tail extends long distances due to radiation pressure on sodium atoms in the lunar exosphere. Our earlier observations measured the average radial velocity of sodium atoms moving down the lunar tail beyond Earth (i.e., near the anti-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::813816e87d0bcf8bb081d2c07d11a34d
https://doi.org/10.1016/j.icarus.2012.04.001
https://doi.org/10.1016/j.icarus.2012.04.001
Publikováno v:
Journal of Geophysical Research: Space Physics. 122:10-10,747
Cascade contributions to geocoronal Balmer α airglow line profiles are directly proportional to the Balmer β/α line ratio and can therefore be determined with near simultaneous Balmer β observations. Due to scattering differences for solar Lyman
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2cee972ae0e3f343b3cf0983e7e47b6
https://doi.org/10.1002/2017ja024055
https://doi.org/10.1002/2017ja024055
Publikováno v:
Applied optics. 54(30)
We describe the design, development, and performance of a narrowband, all-reflective, unaliased spatial heterodyne spectrometer (SHS) that has been tested in observations at the focus of the 1.6 m main telescope of the McMath–Pierce solar telescope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::146859e5bd96e43bb46ebb362f25b96c
https://pubmed.ncbi.nlm.nih.gov/26560368
https://pubmed.ncbi.nlm.nih.gov/26560368
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