Data File Documentation¶
General Comments¶
These are the assumptions of the data file formats:
- tab separated values
- NOT dust corrected
- Contains these column names
- SNID, u, g, r, i, z, err_u, err_g, err_r, err_i, err_z, redshift, ra, dec
- ra and dec are assumed to be floats in degrees
- order is not important
Detailed Data Set Comments¶
Detailed comments and documentation on each data set file in the data/
folder.
RA & Dec are in degrees. PetroRad_r is in arcsec. Photometry is in magnitudes.
Main Data¶
campbell_local.tsv
- An original data set that combines information from
SDSS_Photometric_SNe_Ia.fits
(Campbell) and
SMP-photometry\
(Holtzman). * Hubble residuals (‘hr’) use the Malmquist bias corrected distances. * It was created viaCollecting Local SN Data.ipynb
with the data cuts in the paper: z < 0.5, simga_mag < 1.5 mag, HR < 0.7 mag. * N = 104- An original data set that combines information from
campbell_global.tsv
- The global photometry of the same hosts as
campbell_local.tsv
- Retrieval SEDs in the same way as
gupta_global.tsv
. - N = 104
- The global photometry of the same hosts as
campbell_formass.csv
- TODO
- a csv version of
campbell_global.tsv
- with
PetroRad_r
column removed
Calibration Data¶
ellipt_burst_global.tsv
- TODO
- note really SNID’s but rather galaxy number. More details are in the
notes
header
ellipt_burst_local.tsv
- Not needed therefore not there.
gupta_global.tsv
- The objects analyzed in Gupta 2011 but with the same quality cuts I performed on the Campbell/Holtzmann data set.
- This is the global photometry for the host galaxies of many SDSS-II SN. From DR12 via astroquery 0.3.4, by hand on SkyServer DR13, and Gupta 2011 redshift if none was found before
- N = 77
Gupta11_table2.???
- TODO
self_consistancey.tsv
- no need for RA and Dec in this file. Code skips dust correction for this data set.
H_0 analysis¶
riess_local.tsv
riess_global.tsv
riess_formass.csv
Others¶
- Table 7
- Table 8
- Table 9
Folders¶
calibration_sample_lc/
- Raw light curves
- & light curves in the form needed by
sncosmo
and will be analyses byget_salt_values.py
oldruns/
- original version of data folder. Used for much of the development. Was removed on 2018-07-27 for this current system.
SDSS - coadded
,SDSS - spectra
- Not used and are self evident
SMP-photometry
- “raw” data for from Holtzman scene modeling.
CampbellHoltzman_formass.csv
- This file was used as part of the inputs to
kcorrect
. - is a subset of
CampellHoltzman_global.tsv
- It was created via an older copy of
Collecting Local SN Data.ipynb
.
- This file was used as part of the inputs to
CampellHoltzman_global.tsv
- The global photometry of the same hosts as
CampellHoltzman.tsv
- Retrieval method is the same as
GobalPhotomtery-Gupta.tsv
.
- The global photometry of the same hosts as
circlePhotometry.tsv
final_mags.txt
- Output from Peter’s magnitude calculations.
galaxyPhotometry.tsv
- Am I even using this?
GlobalPhotometry-Gupta.tsv
- This is the global photometry for the host galaxies of many SDSS-II SN
From DR12 via astroquery 0.3.4, by hand on SkyServer DR13, and Gupta 2011 redshift if none was found before
* Gupta11_table2.txt
- The ascii version of table 2 from Gupta 2011. Paper has complete citation.
- tsv file is the same, I mean to only use the txt file but I appear to be using the tsv once in this whole setup.
Riess2016_calibrators.tsv
- These are the galaxies used to calibrate the SN $M_0$ value.
- They are first reported in Table 1 and used for the middle frame in figure 10.
- 101 is M101, 9391 is UGC 9391, and all the rest are NGC objects.
- The redshifts are from Simbad
- The photometry was done by Peter emailed to me on 2018-06-27 with the subject “final mags for cepheid hosts”
- “The uncertainties should be dominated by systematics and not statistical noise given the brightness of these objects. I would say that the relative uncertainty from band to band is 0.03 mag. The over-all uncertainty is larger as a slightly bigger aperture might include more light. But use 0.03 mag and we can inflate the errors on the mass.” – Peter
- Some objects are outside of SDSS footprint, but sadly PanSTARS did not observe in the u band:
‘’’
1365 0.005476 0.00001
1448 0.003895
2442 0.004846
4038 0.005593
5917 0.006472
‘’’
* Riess2016_calibrators_local.tsv
- Same as
Riess2016_calibrators.tsv
but for 1.5kpc radii apertures around the location of their SN.
Riess2016_formass.csv
- same as
Riess2016_calibrators.tsv
but saved as a csv rather than tsv. - except that these “redshifts” are derived from the median NED cephiad distance and assuming a H_0 = 73.8 km/s/Mpc as fit by Campbell 2013 and used throughout this paper.
- same as
SDSS_Photometric_SNe_Ia.fits
- This is the data released in Campbell 2013. It is the cosmological data
for the spectroscopic and photometrically classified SN Ia from SDSS. * It is originally available at http://www.icg.port.ac.uk/stable/campbelh/SDSS_Photometric_SNe_Ia.fits
lc/
- Raw light curves
- & light curves in the form needed by
sncosmo
and will be analyses byget_salt_values.py
ellipt_burst_global.tsv
- IC 219 host of SN 2005dm (elliptical
- NGC 524 host of SN 2000cx (elliptical)
- Arp 299 (starburst) host of many CC SN (local is 2010P)
- M82 (NGC 3034) (starburst) host of SN 2014J