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Modelling surface temperatures on Mars by Ryan Pavlick
I am trying to model surface temperatures on Mars. Coming up with insolation received at the various latitudes was fairly simple, the equations are found at...
February 21st 19 06:50 PM
by pyotr filipivich Go to last post
1 1,338
Cosmological Problems by Richard D. Saam
There have been recent cosmological experimental disclosures represented in part by the following: The 7Be(n,p)7Li reaction and the Cosmological Lithium...
(Multi-page thread 1 2)
February 11th 19 07:11 PM
by Edward Prochak Go to last post
14 736
What does it mean in astrophysics for X-rays to be reflected? by Thomas Womack
Various articles about black holes talk about X-rays emitted near the event horizon 'reflecting off the accretion disc'. What kind of material is it that can...
February 5th 19 03:50 PM
by Steve Willner Go to last post
3 804
LIGO sensitivity compared with the human eye by Jos Bergervoet[_3_]
Recently in another newsgroup (nl.wetenschap) the question came up of LIGO's sensitivity compared to the human eye. a) LIGO can (easily) see a source at one...
February 5th 19 03:50 PM
by Steve Willner Go to last post
4 676
Tales of Cataloguing XV -- last fixes in from the cold by Eric Flesch
When fixing catalogue errors one naturally wants to catch them all, but when in so doing you start to encounter new errors caused by your own recent fixes,...
January 29th 19 05:44 AM
by Eric Flesch Go to last post
0 880
Tales of Cataloguing XIV -- the 0th finding chart by Eric Flesch
(This and the previous posting are because I've recently found & fixed a few more mis-positioned legacy objects -- there's always more if you look hard enough,...
January 10th 19 05:56 AM
by Eric Flesch Go to last post
0 416
Tales of Cataloguing XIII -- the first Hazard by Eric Flesch
On the way to building the Million Quasar catalogue, I had the good fortune of email exchanges with Cyril Hazard, a giant of the early quasar discovery days in...
January 8th 19 05:41 PM
by Eric Flesch Go to last post
0 416
library work: where is paper I? by Phillip Helbig (undress to reply)[_2_]
The paper http://adsabs.harvard.edu/abs/1965SvA.....8..854D @ARTICLE { VDashevskiiYZeldovich65a , AUTHOR = "V. M. Dashevskii and...
January 3rd 19 08:36 PM
by Phillip Helbig Go to last post
3 439
dark matter hypothesis by No Name
aIs it possible that the missing mass, the 'dark matter', consists of two generations of burned out stars? These would be short lifetimes, hence large...
(Multi-page thread 1 2)
December 11th 18 09:26 PM
by Steve Willner Go to last post
17 686
Tales of Cataloguing XII -- resolving a caution by Eric Flesch
The "Tales of Cataloguing" series on this forum were about my trail of data fixes along the way to publishing the "Half Million Quasars Catalogue" (HMQ), 2015...
November 26th 18 05:50 AM
by Eric Flesch Go to last post
0 320
Is higher mass-density at higher Z detectable with current probes? by stargene
A question regarding the expansion of the universe: As the Hyperphysics page @ http://hyperphysics.phy-astr.gsu. edu/hbase/Astro/redshf.html shows, the mass...
November 20th 18 07:35 AM
by Phillip Helbig (undress to reply)[_2_] Go to last post
1 349
Axion Dark Matter by Steve Willner
Just want to mention today's colloquium on the subject. It's available at https://www.youtube.com/watch?v=UUEEIaVSVlE At least I hope that link will...
November 16th 18 12:29 AM
by Steve Willner Go to last post
0 343
Spaceship Oumuamua by jacobnavia
Oumuamua is leaving us at high speed. Humans try to follow it with the VLT, and they report that the thing... is accelerating. Accelerating? When I first...
(Multi-page thread 1 2)
November 9th 18 03:35 AM
by No Name Go to last post
12 1,046
interesting dark-matter candidate by Phillip Helbig (undress to reply)[_2_]
I'm now at a cosmology conference: https://indico.cern.ch/event/736594/overview One reason to go to a conference is to hear about interesting things one...
October 29th 18 04:40 PM
by Phillip Helbig (undress to reply)[_2_] Go to last post
2 406
"Universe Not Expanding" by Phillip Helbig (undress to reply)[_2_]
In article , Lawrence Crowell writes: "The scientists carefully...
October 20th 18 09:21 PM
by Phillip Helbig (undress to reply)[_2_] Go to last post
0 417
Milliquas v5.4 released by Eric Flesch
The Million Quasars (Milliquas) catalogue presents a new release, v5.4 which includes all published quasars to 15 October 2018. The long-term intent is to...
October 20th 18 11:40 AM
by Eric Flesch Go to last post
0 397
IAU: Hubble-Lemaitre Law? by Steve Willner
The IAU is considering recommending that the expansion of the universe be referred to as the "Hubble-Lemaitre Law" instead of the "Hubble Law." More details,...
October 7th 18 03:47 AM
by Phillip Helbig (undress to reply)[_2_] Go to last post
4 491
alternative to disposing of old library contents by Phillip Helbig (undress to reply)[_2_]
It seems that some university libraries are in the process of getting rid of journals, books, and so on, at least those which are not available electronically....
September 6th 18 07:27 AM
by Phillip Helbig (undress to reply)[_2_] Go to last post
0 598
Missing matter found in the cosmic web by Nicolaas Vroom
The article "Missing matter found in the cosmic web" in Nature of 21 June 2018 (See https://www.nature.com/articles/d41586-018-05432-2) Starts with the...
September 2nd 18 08:00 AM
by Phillip Helbig (undress to reply)[_2_] Go to last post
8 945
Physicists Think They've Spotted the Ghosts of Black Holes from Another Universe by Internetado
We're not living in the first universe. There were other universes, full of black holes, in other eons before ours, a group of physicists has said. And we...
August 30th 18 08:28 AM
by Internetado Go to last post
0 522
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