Fsps

- added THEMIS dust emission model

- major bug in tabulted SFHs identified and resolved
- New WMBasic O star grid courtesy of JJ Eldridge, Mason Ng, and Georgie Taylor
- Nebular emission (line and continuum) based on Cloudy tables provided by Nell Byler

04/2/21

- MIST and PARSEC isochrones added
- New version of compsp routine that is much faster and more accurate.
This obviates the need for the time_res_incr parameter
- AGN dust models of Nenkova et al. 2008 added
- Added additional filters, including NEWFIRM, Suprime-Cam, VISTA-VIRCAM
- Fixed a minor bug in the write_isochrone routine related to BHB and BS stars

07/05/18

- Geneva isochrone database added (these are older Geneva models)
- added additional photometric filters
- fixed various bugs related to star formation truncation options

05/28/16

- Many updates to the internal workings of the code to increase performance
- Bugs fixed related to post-AGB stars and to the flux normalization at
the very youngest ages
- A new print option in compsp allows users to print the time-dependent CMD
in all the filters. New IDL routine read_cmd.pro is included.
- Smoothing can now be implemented in wavelength or velocity space
- Added additional filters, including the Stromgren system
- Implementation of Wolf-Rayet stars has changed. We now include WC stars
and metallicity dependence of both WN and WC spectra.
- Allow dust emission to be self-consistently re-absorbed (previously there
was an artificial discontinuity at 1um for very large dust optical depths)
- Nebular emission (both continuum and line) has been implemented, based on
lookup tables from Cloudy (courtesy of Nell Byler). This is off by default
- Circumstellar dust around AGB stars is now included, as described in detail
in Villaume et al. (2014). This is turned on by default
- Bug fixed related to the wavelengths in the allindices.dat file (an air-vac
conversion was missing). New option to output wavelengths in air, rather
the default, which is vacuum.
- Added IGM absorption option a la Madau (1995) prescription
- Added the sf_trunc variable to work for all parameterized SFHs
- Added the distance modulus and a missing -2.5log(1+z) factor to the
computed magnitudes in the case where a non-zero redshift is specified

11/17/15

- Bug in BaSeL library fixed. Effected primarily red/near-IR colors
at the 0.05 mag level.
- dust attenuation can now be applied to SSPs (i.e. when sfh=0), when
dust is turned on
- greatly increased flexibility in the dust model: Added Calzetti et
al. 2000 attenuation curve; Several additional parameters were
added to the parameter set to control various aspects of the dust
model. See the manual for details
- WFPC2 F606W filter was added. If you have added filters to the
FILTER_LIST file you will have to probably contact me to resolve
the conflict.

11/17/09

- Release of v2.0. Major revisions, including a calibration of the
TP-AGB parameters Delta_L and Delta_T on Magellanic Cloud data.
See Conroy & Gunn 2009 for details.
- BaSTI isochrones added
- Post-AGB tracks added
- Witt & Gordon 2000 dust models added
- Routines for computing spectral indices, and velocity broadening
added

04/15/11

- Release of v2.2. Major revisions, including the addition of
synthetic post-AGB spectra from Rauch 2003, synthetic OB and WR
spectra from Smith et al. 2002, and the Geneva models for massive
stars (>70 Msun). This means that the model predictions are now
more accurate at very early ages and in the UV.
- The directory structure has been reorganized.
- The code is now in a svn repository for easy future updates
- There was a bug in compsp that effected early ages.
- The time array is now finer, and can be easily modified to be even
finer
- new IMF option: imf_type=5, which allows for tabulated piece-wise
power-law IMFs
- the Miles spectral library is now fully embedded in FSPS
- the variable Tuniv is now no longer used in setting SFHs. The
final age output is now set by the maximum age in the isochrones
(unless the parameter tage is set).

09/30/11

- Release of v2.3. Major update including the addition of dust
emission models from Draine & Li 2007. The wavelength grid has
been expanded to accomodate this new feature.
- Addition of many filters, including many in the IR and submm.
- The empirical carbon star spectra are now extrapolated beyond 2.4um
with the Aringer et al. 2009 synthetic stellar library.
- The empirical M star spectra are now extrapolated beyond 2.4um with
the PHOENIX theoretical stellar library (the BT-SETTL grid).
- Switching between different isochrones and stellar libaries is now
more transparent in the sps_vars.f90 module.

06/14/13

- Release of v2.4.
- Bug found related to post-AGB stars. This was affecting far-UV
spectra at old ages.
- MILES library is now combined with BaSeL so that when the MILES
spectral library is used, the wavelengths are extended beyond the
nominal MILES limits with the BaSeL grid.
- Bug fixed related to user-defined tabulated IMF.
- Bug fixed related to normalization of Spitzer MIPS magnitudes
- When the "zred" (redshift) flag is non-zero, the output spectra are
now redshifted, in addition to the magnitudes
- Spectra can now be smoothed by a Gaussian in velocity space. This
is now a parameter in the main parameter set.
- Major update to the filter set (see the file FILTER_LIST in the
data directory for details). Many new HST filters have been added,
and the ordering of the filters has changed compeletely. Please
keep this in mind when reading the *mags file! If you use the
read_mags.pro routine provided with FSPS to read in the *mags files
then you will notice no change except the increased number of
available filters.

4/17/14