[meteorite-list] Fireball Temperature?

From: Meteorites USA <eric_at_meteoritecentral.com>
Date: Fri, 14 May 2010 14:59:33 -0700
Message-ID: <4BEDC7C5.8020902_at_meteoritesusa.com>

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 <eric at meteoritesusa.com>
>> Subject: [meteorite-list] Fireball Temperature?
>> To: Meteorite-list <meteorite-list at meteoritecentral.com>
>> Message-ID: <4BEC83D7.3070202 at meteoritesusa.com>
>> 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: GeoZay at aol.com
>> Subject: Re: [meteorite-list] Fireball Temperature?
>> To: meteorite-list at meteoritecentral.com
>> Message-ID: <cbb04.3ab3cd38.391de011 at aol.com>
>> 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 <stelor96 at yahoo.com>
>> Subject: Re: [meteorite-list] Fireball Temperature?
>> To: Meteorite-list <meteorite-list at meteoritecentral.com>, Meteorites
>> USA <eric at meteoritesusa.com>
>> Message-ID: <162132.99630.qm at web56408.mail.re3.yahoo.com>
>> 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 <eric at meteoritesusa.com> wrote:
>>
>>> From: Meteorites USA <eric at meteoritesusa.com>
>>> Subject: [meteorite-list] Fireball Temperature?
>>> To: "Meteorite-list" <meteorite-list at meteoritecentral.com>
>>> 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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Received on Fri 14 May 2010 05:59:33 PM PDT