Astrophysics

New Topic

779 topics

Page 1 of 32
- Jump to page:
1
2
3
4
5
…
32
Next

Topics

Replies

Views

Last post

Little studied cluster gets some love

Last post by Kanadalainen « Mon Oct 14, 2019 5:53 pm

by Kanadalainen » Mon Oct 14, 2019 5:53 pm

0 Replies

12 Views

Last post by Kanadalainen
Mon Oct 14, 2019 5:53 pm
Using a galaxy as a magnifying lens

Last post by Kanadalainen « Mon Oct 14, 2019 5:51 pm

by Kanadalainen » Mon Oct 14, 2019 5:51 pm

Not a new idea, but fascinating.

0 Replies

8 Views

Last post by Kanadalainen
Mon Oct 14, 2019 5:51 pm
SWaB: how dense is a black hole?

Last post by Gmetric « Mon Oct 14, 2019 2:45 pm
Replies: 7
by notFritzArgelander » Sat Oct 12, 2019 6:11 am

First post

He uses the S word as if singularities were real! Naughty! Naughty! ;)

But, then, there follows a nice discussion about how more massive black...

Last post

The logic for Ethan’s use of the “S” word is illustrated in this article.

Yes, yes. I cheerfully concede that General Relativity implies...

7 Replies

88 Views

Last post by Gmetric
Mon Oct 14, 2019 2:45 pm
2019 Nobel to Peebles, Queloz, Mayor

Last post by notFritzArgelander « Mon Oct 14, 2019 9:39 am
Replies: 6
by notFritzArgelander » Tue Oct 08, 2019 10:44 am

First post

Peebles gets half. His book Physical Cosmology was a strong influence for me.

Last post

My first post here, hope I will not immediately categorized as a troll :) (edit: actually did happen !)

Queloz and Mayor are a fairly safe choice...

6 Replies

87 Views

Last post by notFritzArgelander
Mon Oct 14, 2019 9:39 am
another DM radio

Last post by GCoyote « Sun Oct 13, 2019 7:12 pm
Replies: 5
by notFritzArgelander » Thu Oct 10, 2019 12:41 am

First post

The field of inventing axion DM detectors is heating up! Here's the latest proposal....

and here's the earlier (by a few weeks) idea.

The new...

Last post

Hadn't thought of it that way, Thanks!

5 Replies

67 Views

Last post by GCoyote
Sun Oct 13, 2019 7:12 pm
new work on the Hubble "constant" tension

Last post by GCoyote « Sun Oct 13, 2019 12:37 pm
Replies: 5
by notFritzArgelander » Thu Oct 10, 2019 11:51 pm

First post

I'm going to come back to translate later. Need to do errands now.

The current Hubble constant tension is usually presented by comparing...

Last post

so this study says the Standard Cosmological Model seems really solid, right nFA?

Indirectly, yes. The study assumes that the flat ΛCDM model is...

5 Replies

81 Views

Last post by GCoyote
Sun Oct 13, 2019 12:37 pm
Unexpected Pressure at Edge of Solar System

Last post by GCoyote « Sun Oct 13, 2019 12:24 pm
Replies: 3
by AntennaGuy » Fri Oct 11, 2019 8:12 pm

First post

Voyager Mission Reveals Unexpected Pressure at The Edge of The Solar System
See

Last post

Ah, missed that. Sorry about the (in effect) duplicate post.

No worries. Old guys at the dinner used to revisit favorite baseball games. No reason...

3 Replies

53 Views

Last post by GCoyote
Sun Oct 13, 2019 12:24 pm
in energy the Crab Nebula beats the LHC by HUGE!

Last post by notFritzArgelander « Sat Oct 12, 2019 11:38 pm
Replies: 2
by notFritzArgelander » Sat Oct 12, 2019 6:47 pm

2 Replies

66 Views

Last post by notFritzArgelander
Sat Oct 12, 2019 11:38 pm
SMBH winds suppress star formation in dwarf galaxies

Last post by notFritzArgelander « Sat Oct 12, 2019 5:39 pm

by notFritzArgelander » Sat Oct 12, 2019 5:39 pm

0 Replies

29 Views

Last post by notFritzArgelander
Sat Oct 12, 2019 5:39 pm
exoplanet habitability

Last post by Kanadalainen « Sat Oct 12, 2019 12:28 pm
Replies: 2
by Kanadalainen » Sat Oct 12, 2019 12:09 pm

First post

This is not meant as a follow up to recent comments by Michel Mayor, which I respect - its just out of plain old boring interest. :)

I hope this...

Last post

Perfectly! Thanks my friend. :)

2 Replies

39 Views

Last post by Kanadalainen
Sat Oct 12, 2019 12:28 pm
AAS: possibly impossible planets

Last post by Kanadalainen « Sat Oct 12, 2019 4:30 am
Replies: 2
by notFritzArgelander » Fri Oct 11, 2019 5:25 pm

2 Replies

46 Views

Last post by Kanadalainen
Sat Oct 12, 2019 4:30 am
AI sizes exoplanets

Last post by helicon « Fri Oct 11, 2019 5:11 pm
Replies: 1
by notFritzArgelander » Fri Oct 11, 2019 4:15 pm

1 Replies

28 Views

Last post by helicon
Fri Oct 11, 2019 5:11 pm
Video visualization of BH flares

Last post by notFritzArgelander « Fri Oct 11, 2019 4:13 pm

by notFritzArgelander » Fri Oct 11, 2019 4:13 pm

0 Replies

22 Views

Last post by notFritzArgelander
Fri Oct 11, 2019 4:13 pm
MW has captured satellites from neighbors

Last post by helicon « Thu Oct 10, 2019 11:26 pm
Replies: 3
by notFritzArgelander » Thu Oct 10, 2019 10:41 pm

3 Replies

52 Views

Last post by helicon
Thu Oct 10, 2019 11:26 pm
AAS: do pulsars cause an antimatter excess?

Last post by notFritzArgelander « Thu Oct 10, 2019 10:52 pm

by notFritzArgelander » Thu Oct 10, 2019 10:52 pm

The pulsars are exculpated so maybe it's DM decay?

0 Replies

24 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 10:52 pm
thermal cycles and mass loss in yellow supergiant stars

Last post by notFritzArgelander « Thu Oct 10, 2019 10:34 pm

by notFritzArgelander » Thu Oct 10, 2019 10:34 pm

0 Replies

15 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 10:34 pm
MW mass inflow, outflow

Last post by notFritzArgelander « Thu Oct 10, 2019 10:26 pm
Replies: 4
by notFritzArgelander » Fri Oct 04, 2019 1:42 pm

4 Replies

56 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 10:26 pm
For newborn planets, solar systems are naturally baby-proof

Last post by notFritzArgelander « Thu Oct 10, 2019 10:19 pm

by notFritzArgelander » Thu Oct 10, 2019 10:19 pm

0 Replies

16 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 10:19 pm
MeeKAT finds BHXB (black hole X-ray binary)

Last post by notFritzArgelander « Thu Oct 10, 2019 10:16 pm

by notFritzArgelander » Thu Oct 10, 2019 10:16 pm

0 Replies

20 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 10:16 pm
no human migration outside solar system

Last post by notFritzArgelander « Thu Oct 10, 2019 9:22 pm
Replies: 12
by notFritzArgelander » Wed Oct 09, 2019 5:39 pm

12 Replies

153 Views

Last post by notFritzArgelander
Thu Oct 10, 2019 9:22 pm
NASA's Webb will image the Milky Way's central core

Last post by Kanadalainen « Thu Oct 10, 2019 12:52 pm

by Kanadalainen » Thu Oct 10, 2019 12:52 pm

0 Replies

30 Views

Last post by Kanadalainen
Thu Oct 10, 2019 12:52 pm
Looking for molten proto earths

Last post by notFritzArgelander « Wed Oct 09, 2019 9:15 pm
Replies: 3
by notFritzArgelander » Wed Oct 09, 2019 4:02 pm

3 Replies

50 Views

Last post by notFritzArgelander
Wed Oct 09, 2019 9:15 pm
Oxygen and metal from Moon regolith

Last post by GCoyote « Wed Oct 09, 2019 8:53 pm
Replies: 2
by Kanadalainen » Wed Oct 09, 2019 12:31 pm

2 Replies

45 Views

Last post by GCoyote
Wed Oct 09, 2019 8:53 pm
making magnetars by collisions

Last post by notFritzArgelander « Wed Oct 09, 2019 5:46 pm

by notFritzArgelander » Wed Oct 09, 2019 5:46 pm

Since τ Sco figures so prominently here's a link.

0 Replies

21 Views

Last post by notFritzArgelander
Wed Oct 09, 2019 5:46 pm
SWaB: growing structures in the universe top down? bottom up?

Last post by notFritzArgelander « Wed Oct 09, 2019 4:25 pm

by notFritzArgelander » Wed Oct 09, 2019 4:25 pm

0 Replies

20 Views

Last post by notFritzArgelander
Wed Oct 09, 2019 4:25 pm

New Topic

779 topics

Page 1 of 32
- Jump to page:
1
2
3
4
5
…
32
Next

Return to Board Index

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum