Understanding through Discussion


Welcome! You are not logged in. [ Login ]
EvC Forum active members: 82 (9005 total)
53 online now:
kjsimons, PaulK, Percy (Admin), vimesey (4 members, 49 visitors)
Newest Member: kanthesh
Happy Birthday: AdminPhat
Post Volume: Total: 881,074 Year: 12,822/23,288 Month: 547/1,527 Week: 226/207 Day: 3/45 Hour: 0/0

Announcements: Topic abandonment warning (read and/or suffer the consequences)


Thread  Details

Email This Thread
Newer Topic | Older Topic
  
Author Topic:   Falsifying a young Universe. (re: Supernova 1987A)
dad
Member
Posts: 337
Joined: 05-29-2020


Message 946 of 948 (876822)
05-29-2020 2:31 AM
Reply to: Message 12 by Eta_Carinae
11-16-2003 9:51 PM


quote:
Do you think it's a coincidence that almost all scientists do not accept the YEC position on these points?

Not sure you are still alive since you have not posted in a long time.

No, it is not coincidence any more than any religion not accepting other beliefs is coincidence.


This message is a reply to:
 Message 12 by Eta_Carinae, posted 11-16-2003 9:51 PM Eta_Carinae has not yet responded

Replies to this message:
 Message 947 by Admin, posted 05-29-2020 11:05 AM dad has not yet responded

  
Admin
Director
Posts: 12705
From: EvC Forum
Joined: 06-14-2002


Message 947 of 948 (876835)
05-29-2020 11:05 AM
Reply to: Message 946 by dad
05-29-2020 2:31 AM


Eta_Carinae has notifications turned on, but his email address of record is not valid, so he will not receive the email notice about your message and is unlikely to see it.

--Percy
EvC Forum Director

This message is a reply to:
 Message 946 by dad, posted 05-29-2020 2:31 AM dad has not yet responded

  
Astrophile
Member
Posts: 81
From: United Kingdom
Joined: 02-10-2014


Message 948 of 948 (880904)
08-13-2020 6:13 PM
Reply to: Message 902 by creation
11-26-2018 1:21 PM


Re: Confusing
quote:
Seeing a star does not tell us its size or distance or true nature. Yes we have info in incoming light that tells us that it seems to have certain elements in it. What else stars may have that we cannot detect/see we do not know.

The intensity ratios of lines of different ionisation stages in a stellar spectrum of can tell us its temperature, and the line widths can tell us its surface gravity (and therefore indirectly its radius and its luminosity). The shifts of the spectral lines can also tell us whether the star is a binary; the line widths (again) can tell us its rotation speed, and the polarisation of the light from the spectral lines can tell us something about the star's magnetic field. Changes in the line profiles can tell us about the star's profile. The presence of emission lines can tell us about the star's chromosphere and about the presence of a stellar wind or circumstellar shell. The different intensities of the spectral lines can also provide information about the abundances of the different elements in the star's atmosphere, and, therefore, indirectly about the nuclear reactions that are taking place in, for example, carbon stars, S-type stars and supernovae.


This message is a reply to:
 Message 902 by creation, posted 11-26-2018 1:21 PM creation has not yet responded

  
Newer Topic | Older Topic
Jump to:


Copyright 2001-2018 by EvC Forum, All Rights Reserved

™ Version 4.0 Beta
Innovative software from Qwixotic © 2020