Hi Laurence,
Thanks for the response! I'm humbled by your participation on this
question... I appreciate it. I do have another question... ;) of course.
Given the extreme temperature, and the massive pressure exerted on the
meteoroid body while in it's incandescent state (ablation phase?), and
taking into account the very short duration of this "meteor" state
phenomena, would you agree that a 5-10 second "burn" would be sufficient
enough to ablate 90% of a larger body's original mass? Assuming of
course the body is an ordinary stone type meteoroid.
It just seems like such a very short period of time for something to
sublimate into gases and physically ablate into such a small fraction of
it's original mass.
Regards,
Eric
On 5/14/2010 9:43 AM, Laurence Garvie wrote:
I just had a quick look at the paper by Popova, Meteoroid Ablation
models (2004) Earth, Moon, and Planets, vol. 95, 303-319, and their
spectral data from meteorites indicate that the brightness
temperatures of the vapor are around 4000-6000K.
Laurence
CMS
ASU
------------------------------
Message: 2
Date: Thu, 13 May 2010 15:57:27 -0700
From: Meteorites USA <[email protected]>
Subject: [meteorite-list] Fireball Temperature?
To: Meteorite-list <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Anyone know how hot a large meteor/fireball gets?
Regards,
Eric Wichman
Meteorites USA
------------------------------
Message: 3
Date: Thu, 13 May 2010 19:06:57 EDT
From: [email protected]
Subject: Re: [meteorite-list] Fireball Temperature?
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset="US-ASCII"
Anyone know how hot a large meteor/fireball gets?<<
At least the melting point of iron, which is 2800*F.
geozay
------------------------------
Message: 4
Date: Thu, 13 May 2010 16:10:47 -0700 (PDT)
From: Steve Witt <[email protected]>
Subject: Re: [meteorite-list] Fireball Temperature?
To: Meteorite-list <[email protected]>, Meteorites
USA <[email protected]>
Message-ID: <[email protected]>
Content-Type: text/plain; charset=us-ascii
Eric,
A quick check of O. Richard Norton's Rocks from Space puts it >3000
degrees F.
Regards,
Steve
Steve Witt
IMCA #9020
http://imca.cc/
--- On Thu, 5/13/10, Meteorites USA <[email protected]> wrote:
From: Meteorites USA <[email protected]>
Subject: [meteorite-list] Fireball Temperature?
To: "Meteorite-list" <[email protected]>
Date: Thursday, May 13, 2010, 5:57 PM
Anyone know how hot a large
meteor/fireball gets?
Regards,
Eric Wichman
Meteorites USA
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