[BART-user] a TEA question

[aj-foster]

The following is an archived message from the BART-user mailing list, which has now closed.

From: wd***@as*** (William Cochran)
Date: Wed, 14 Jun 2017 10:43:26 -0500
Subject: [BART-user] a TEA question

Hello everyone:

I am working with an undergraduate student here at UT, Arjun Vijaywargiya.
We have been attempting to apply parts of BART to atmospheres which are
probably somewhat cooler than those for which it was designed.

We have some questions about TEA. The general question is what
is the temperature range over which TEA has been validated?

We are particularly interested in how (or if) it handles the possible
condensation of various species such as H2O or NH***@loemperatures.
We see in the Blecic, Harrington & Bowman (2016) paper that
"Currently, TEA is specialized for gaseous species, and the
implementation of condensates is left for future work. In
opacity ca@lo***emperatures (below 1000 K), the
inclusion of condensates is necessary as it reduces the gas
phase contribution to opacity (e.g., Sharp & Huebner 1990;
Lodders & Fegley 2002; Burrows & Sharp 1999)."
Are we to interpret this as saying that TEA does not handle the
condensation physics at all (i.e. it does not limit the partial
pressure of a potentially condensable constituent to its saturation
vapor pressure? Or should we interpret that paragraph as saying that
TEA does not deal with the opacity of the condensed material (e.g.
water clouds)? A quick look at the .tea files produced by TEA
appears to imply the former, but we would like to check with everyone
to verify this.

Second question: If we were to implement condensation of volatiles,
where within the many different code files should we do this?

Thanks everyone for your help,
Bill Cochran

--
William Cochran wd***@as***
Research Professor wd***@au***
The University of Te***@au*** +1 512-471-6474
Department of Astronomy fax +1 512-471-6016
2515 Speedway, Stop C1400
Austin, Texas 78712-1205

[aj-foster]

From: jh***@ph*** (Joe Harrington)
Date: Wed, 14 Jun 2017 13:32:40 -0400
Subject: [BART-user] a TEA question

Hi Bill,

That would be a great question for the TEA-user mailing list!

https://physics.ucf.edu/mailman/listinfo/tea-user

--jh--

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From: William Cochran <wd***@as***>
Date: Wed, 14 Jun 2017 10:43:26 -0500
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Subject: [BART-user] a TEA question
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Hello everyone:

I am working with an undergraduate student here at UT, Arjun Vijaywargiya.
We have been attempting to apply parts of BART to atmospheres which are
probably somewhat cooler than those for which it was designed.

We have some questions about TEA. The general question is what
is the temperature range over which TEA has been validated?

We are particularly interested in how (or if) it handles the possible
condensation of various species such as H2O or NH***@loemperatures.
We see in the Blecic, Harrington & Bowman (2016) paper that
"Currently, TEA is specialized for gaseous species, and the
implementation of condensates is left for future work. In
opacity ca@lo***emperatures (below 1000 K), the
inclusion of condensates is necessary as it reduces the gas
phase contribution to opacity (e.g., Sharp & Huebner 1990;
Lodders & Fegley 2002; Burrows & Sharp 1999)."
Are we to interpret this as saying that TEA does not handle the
condensation physics at all (i.e. it does not limit the partial
pressure of a potentially condensable constituent to its saturation
vapor pressure? Or should we interpret that paragraph as saying that
TEA does not deal with the opacity of the condensed material (e.g.
water clouds)? A quick look at the .tea files produced by TEA
appears to imply the former, but we would like to check with everyone
to verify this.

Second question: If we were to implement condensation of volatiles,
where within the many different code files should we do this?

Thanks everyone for your help,
Bill Cochran

--
William Cochran wd***@as***
Research Professor wd***@au***
The University of Te***@au*** +1 512-471-6474
Department of Astronomy fax +1 512-471-6016
2515 Speedway, Stop C1400
Austin, Texas 78712-1205

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