Ultrasharp Images Of A Sunspot |
Ultrasharp Images Of A Sunspot |
 Oct 6 2005, 08:15 AM
Post
#1
|
|
 Member  Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471  |
New optics produce ultrasharp images of sunspot
News article: http://spaceflightnow.com/news/n0510/05sunspots/ More images: http://www.nso.edu/press/DALSA/ NOAA 0805: 
-------------------- - blue_scape / Nico -
|
 |
 
|
 |
|
Oct 7 2005, 07:02 AM
Post
#2
|
|
|
Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Abyss! Abyss!
-------------------- - blue_scape / Nico -
|
|
|
|
|
Oct 7 2005, 09:31 AM
Post
#3
|
|
 Member Group: Members Posts: 255 Joined: 4-January 05 Member No.: 135 |
QUOTE (SigurRosFan @ Oct 7 2005, 07:02 AM) Abyss! Abyss!   We won't have to worry about power either... |
|
|
|
|
Feb 7 2006, 07:03 PM
Post
#4
|
|
 Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Astrophysics, abstract
astro-ph/0602129 From: Juan Manuel Borrero [view email] Date: Mon, 6 Feb 2006 17:20:10 GMT (28kb) The uncombed penumbra Authors: J.M. Borrero, M. Rempel, S.K. Solanki Comments: 6 pages, 2 figures. to appear in the proceedings of the Solar Polarization Workshop IV The uncombed penumbral model explains the structure of the sunspot penumbra in terms of thick magnetic fibrils embedded in a magnetic surrounding atmosphere. This model has been successfully applied to explain the polarization signals emerging from the sunspot penumbra. Thick penumbral fibrils face some physical problems, however. In this contribution we will offer possible solutions to these shortcomings. http://arxiv.org/abs/astro-ph/0602129 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
|
|
|
|
Feb 9 2006, 03:33 PM
Post
#5
|
|
|
Senior Member Group: Members Posts: 2454 Joined: 8-July 05 From: NGC 5907 Member No.: 430 |
Astrophysics, abstract
astro-ph/0602176 From: Huw Morgan [view email] Date: Wed, 8 Feb 2006 01:26:00 GMT (54kb) The Impact of Sunspots on the Interpretation of Coronal Observations of the O VI Doublet Authors: H. Morgan, Shadia Rifai Habbal Comments: 4 pages, 3 figures Journal-ref: ApJ Letters, 630, 2005, L189 Due to their high intensity of emission in the O VI 1031.9 and 1037.6A lines, even small sunspots on the solar disk can strongly influence the intensity of the radiative scattering component of O VI lines in the corona. Observations of O VI disk spectra show a 1032/1038 line intensity ratio of >2.6 in a sunspot compared to quiet disk values of 2. The enhancement of the 1032 line in comparison to the 1038 is likely due to interaction between molecular hydrogen emission from the sunspot and the chromospheric O5+. Modeling shows that a contribution from sunspots increases the coronal O VI 1032/1038 intensity ratio to values considerably higher than those achieved with a quiet disk or coronal hole spectrum. Therefore a re-examination of flow velocities derived from UVCS/SOHO streamer observations must be made. This modeling demonstrates that the inclusion of sunspots, when present, may lead to non-zero outflow velocities at lower heights in streamer cores in contrast to some existing model results. http://arxiv.org/abs/astro-ph/0602176 -------------------- "After having some business dealings with men, I am occasionally chagrined,
and feel as if I had done some wrong, and it is hard to forget the ugly circumstance. I see that such intercourse long continued would make one thoroughly prosaic, hard, and coarse. But the longest intercourse with Nature, though in her rudest moods, does not thus harden and make coarse. A hard, sensible man whom we liken to a rock is indeed much harder than a rock. From hard, coarse, insensible men with whom I have no sympathy, I go to commune with the rocks, whose hearts are comparatively soft." - Henry David Thoreau, November 15, 1853 |
|
|
|
SigurRosFan Ultrasharp Images Of A Sunspot Oct 6 2005, 08:15 AM
Tesheiner Sunspot, that's you? Oct 6 2005, 09:03 AM SigurRosFan RE: Ultrasharp Images Of A Sunspot Oct 6 2005, 09:43 AM Myran *Pust on the doc coat* Hmmmm, dunno what it is, bu... Oct 6 2005, 01:17 PM
dilo Hey, I can see inside the Sunspot (hotspots?) Oct 7 2005, 06:31 AM Pando QUOTE (SigurRosFan @ Oct 7 2005, 12:02 AM)Aby... Feb 10 2006, 01:24 AM ljk4-1 Astrophysics, abstract
astro-ph/0602260
From: Ale... Feb 14 2006, 06:10 PM Ant103 And say that this sunspot is big as the Earth. It... Feb 14 2006, 10:46 PM ljk4-1 400-YEAR OLD SUNSPOTS: Today is the 442nd birthda... Feb 15 2006, 08:26 PM ljk4-1 Long-term variation in distribution of sunspot gro... Jun 5 2006, 04:04 PM |
|
Lo-Fi Version | Time is now: 30th April 2024 - 06:01 PM |
|
RULES AND GUIDELINES Please read the Forum Rules and Guidelines before posting. IMAGE COPYRIGHT |
OPINIONS AND MODERATION Opinions expressed on UnmannedSpaceflight.com are those of the individual posters and do not necessarily reflect the opinions of UnmannedSpaceflight.com or The Planetary Society. The all-volunteer UnmannedSpaceflight.com moderation team is wholly independent of The Planetary Society. The Planetary Society has no influence over decisions made by the UnmannedSpaceflight.com moderators. |
SUPPORT THE FORUM Unmannedspaceflight.com is funded by the Planetary Society. Please consider supporting our work and many other projects by donating to the Society or becoming a member. |
|
