Forum: Research
November 11th 19, 11:36 PM Posted to sci.astro.research
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Replies: 16
Views: 1,059
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Forum: Research
November 2nd 19, 09:50 AM Posted to sci.astro.research
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Replies: 16
Views: 1,059
Is the Universe Younger than We Thought?
In article , I wrote:
The upshot is that the discrepancy between the local and the CMB
measurements of H_0 is between 4 and 5.7 sigma, depending on how
conservative...
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Forum: Research
October 19th 19, 09:39 AM Posted to sci.astro.research
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Replies: 16
Views: 1,059
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Forum: Research
October 15th 19, 09:17 PM Posted to sci.astro.research
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Replies: 16
Views: 1,059
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Forum: Research
September 27th 19, 02:32 AM Posted to sci.astro.research
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Replies: 16
Views: 1,059
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Forum: Astronomy Misc
September 24th 19, 07:17 PM Posted to sci.astro.research,sci.astro
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Replies: 0
Views: 749
New interstellar visitor
Details at
https://www.iau.org/news/pressreleases/detail/iau1910/?lang
This one looks like a comet, but observations are just beginning.
--
Help keep our newsgroup healthy; please don't feed the...
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Forum: Research
September 24th 19, 07:17 PM Posted to sci.astro.research,sci.astro
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Replies: 16
Views: 1,059
New interstellar visitor
Details at
https://www.iau.org/news/pressreleases/detail/iau1910/?lang
This one looks like a comet, but observations are just beginning.
--
Help keep our newsgroup healthy; please don't feed the...
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Forum: Research
August 23rd 19, 06:10 AM Posted to sci.astro.research
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Replies: 2
Views: 303
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Forum: Research
May 11th 19, 07:15 PM Posted to sci.astro.research
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Replies: 0
Views: 179
Reionization
[Moderator's note: Apologies for the delay in posting this. -P.H.]
Not long ago, we had some discussion here of reionization. I've just
seen a terrific colloquium by Steve Finkelstein on the...
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Forum: Research
May 8th 19, 07:02 PM Posted to sci.astro.research
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Replies: 8
Views: 189
Revise age of the universe?
In article ,
"Richard D. Saam" writes:
The main point of the Space Telescope Institute work
https://arxiv.org/abs/1903.07603
is...
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Forum: Research
April 25th 19, 11:05 PM Posted to sci.astro.research
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Replies: 6
Views: 190
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Forum: Astronomy Misc
April 17th 19, 09:36 PM Posted to sci.astro
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Replies: 2
Views: 810
Black Holes
In article ,
Martin Brown writes:
No. [Black holes] will only consume any stars that happen to
venture too close and find...
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Forum: Astronomy Misc
April 17th 19, 09:21 PM Posted to sci.astro
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Replies: 5
Views: 717
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Forum: Research
March 28th 19, 10:56 PM Posted to sci.astro.research
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Replies: 1
Views: 188
supermassive black holes at z 7
In article ,
jacobnavia writes:
A team of astronomers have conducted a search for distant super massive
black holes and they have found 83...
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Forum: Astronomy Misc
February 13th 19, 09:54 PM Posted to sci.astro
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Replies: 11
Views: 748
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Forum: Research
February 5th 19, 04:50 PM Posted to sci.astro.research
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Replies: 3
Views: 1,083
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Forum: Research
February 5th 19, 04:50 PM Posted to sci.astro.research
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Replies: 4
Views: 940
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Forum: Research
February 5th 19, 04:44 PM Posted to sci.astro.research
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Replies: 14
Views: 1,190
Cosmological Problems
I wrote:
In practice, the term
"visible" often refers to light detectable by instrumentation
suitable for visible light, say from 300 nm (the atmospheric cutoff)
to 1000 nm (the...
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Forum: Astronomy Misc
February 4th 19, 11:21 PM Posted to sci.astro
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Replies: 11
Views: 748
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Forum: Research
January 2nd 19, 08:09 AM Posted to sci.astro.research
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Replies: 14
Views: 1,190
Cosmological Problems
In article ,
(Phillip Helbig (undress to reply)) writes:
Visible light is about 0.4 to 0.7 microns (400 to 700 nm (nanometers),
That...
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Forum: Astronomy Misc
December 31st 18, 10:23 PM Posted to sci.astro
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Replies: 21
Views: 830
No Alien Visits Ever
In article ,
writes:
A very good reason why we're never visited by any aliens :
Distances between stars are way too...
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Forum: Research
December 17th 18, 09:54 PM Posted to sci.astro.research
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Replies: 14
Views: 1,190
Cosmological Problems
[Moderator's note: The James Webb Space Telescope is more like a
traditional telescope in space, the successor to HST in some sense, but
with more emphasis on the infrared.
JWST wavelength...
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Forum: Research
December 11th 18, 10:26 PM Posted to sci.astro.research
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Replies: 17
Views: 1,076
dark matter hypothesis
In article ,
Jos Bergervoet writes:
If they oscillate up and down the plane, then each time they go through
the plane and traverse the...
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Forum: Research
December 8th 18, 07:38 PM Posted to sci.astro.research
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Replies: 17
Views: 1,076
dark matter hypothesis
In article ,
Martin Brown writes:
A Unifying Theory of Dark Energy and Dark Matter: Negative Masses and
Matter Creation within a...
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Forum: Research
December 8th 18, 07:38 PM Posted to sci.astro.research
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Replies: 17
Views: 1,076
dark matter hypothesis
In article ,
jacobnavia writes:
IF the halo is spherical THEN the study is right.
If the halo is NOT spherical but follows the plane of...
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