J/MNRAS/470/95 CLASH galaxies photometric redshifts in 25 ClG (Molino+, 2017)
CLASH: accurate photometric redshifts with 14 HST bands in massive galaxy
cluster cores.
Molino A., Benitez N., Ascaso B., Coe D., Postman M., Jouvel S., Host O.,
Lahav O., Seitz S., Medezinski E., Rosati P., Schoenell W., Koekemoer A.,
Jimenez-teja Y., Broadhurst T., Melchior P., Balestra I., Bartelmann M.,
Bouwens R., Bradley L., Czakon N., Donahue M., Ford H., Graur O.,
Graves G., Grillo C., Infante L., Jha S.W., Kelson D., Lazkoz R., Lemze D.,
Maoz D., Mercurio A., Meneghetti M., Merten J., Moustakas L., Nonino M.,
Orgaz S., Riess A., Rodney S., Sayers J., Umetsu K., Zheng W., Zitrin A.
<Mon. Not. R. Astron. Soc., 470, 95-113 (2017)>
=2017MNRAS.470...95M 2017MNRAS.470...95M (SIMBAD/NED BibCode)
ADC_Keywords: Clusters, galaxy ; Galaxies, photometry ; Redshifts
Keywords: methods: data analysis - methods: statistical -
large-scale structure of Universe - cosmology: observations - catalog
Abstract:
We present accurate photometric redshifts for galaxies observed by the
Cluster Lensing And Supernova survey with Hubble (CLASH). CLASH
observed 25 massive galaxy cluster cores with the Hubble Space
Telescope in 16 filters spanning 0.2-1.7µm. Photometry in such
crowded fields is challenging. Compared to our previously released
catalogues, we make several improvements to the photometry, including
smaller apertures, intracluster light subtraction, point spread
function matching and empirically measured uncertainties. We further
improve the Bayesian photometric redshift estimates by adding a redder
elliptical template and by inflating the photometric uncertainties of
the brightest galaxies. The resulting photometric redshift accuracies
are dz/(1+z)∼0.8, 1.0 and 2.0 per cent for galaxies with I-band
F814W AB magnitudes <18, 20 and 23, respectively. These results are
consistent with our expectations. They improve on our previously
reported accuracies by a factor of 4 at the bright end and a factor of
2 at the faint end. Our new catalogue includes 1257 spectroscopic
redshifts, including 382 confirmed cluster members. We also provide
stellar mass estimates. Finally, we include lensing magnification
estimates of background galaxies based on our public lens models. Our
new catalogue of all 25 CLASH clusters is available via Mikulski
Archive for Space Telescopes. The analysis techniques developed here
will be useful in other surveys of crowded fields, including the
Frontier Fields and surveys carried out with Javalambre-Physics of the
Accelerated Universe Astrophysical Survey and James Webb Space
Telescope.
Description:
New photometric redshift catalogue for the 25 CLASH massive galaxy
clusters. The catalogue includes astrometric, morphologic, photometric
and photo-z information for all detected sources in an NIR detection
image (e.g. a weighted sum of WFC3/IR images: F105W, F110W, F125W,
F140W, F160W).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 60 25 The CLASH galaxy cluster sample
a383.dat 812 1912 Abell 383 photometric redshift catalogue
a209.dat 812 2069 Abell 209 photometric redshift catalogue
a1423.dat 812 1984 Abell 1423 photometric redshift catalogue
a2261.dat 812 1728 Abell 2261 photometric redshift catalogue
rxj2129.dat 812 1547 RX J2129+0005 photometric redshift catalogue
a611.dat 812 1123 Abell 611 photometric redshift catalogue
ms2137.dat 812 1736 MS2137-2353 photometric redshift catalogue
rxj1532.dat 812 1347 RX J1532.8+3021 photometric redshift catalogue
rxj2248.dat 812 1645 RX J2248-4431 photometric redshift catalogue
macs1931.dat 812 1633 MACS J1931-26 photometric redshift catalogue
macs1115.dat 812 1376 MACS J1115+0129 photometric redshift catalogue
macs1720.dat 812 1609 MACS J1720+3536 photometric redshift catalogue
macs0429.dat 812 1677 MACS J0429-02 photometric redshift catalogue
macs0416.dat 812 1754 MACS J0416-24 photometric redshift catalogue
macs1206.dat 812 1668 MACS J1206-08 photometric redshift catalogue
macs0329.dat 812 1617 MACS J0329-02 photometric redshift catalogue
rxj1347.dat 812 1698 RX J1347-1145 photometric redshift catalogue
macs1311.dat 812 1641 MACS J1311-03 photometric redshift catalogue
macs1423.dat 812 1709 MACS J1423.8+2404 photometric redshift catalogue
macs1149.dat 812 1656 MACS J1149+22 photometric redshift catalogue
macs0717.dat 812 1822 MACS J0717+37 photometric redshift catalogue
macs2129.dat 812 1845 MACS J2129+0005 photometric redshift catalogue
macs0647.dat 812 1774 MACS J0647+70 photometric redshift catalogue
macs0744.dat 812 1792 MACS J0744+39 photometric redshift catalogue
clj1226.dat 812 1940 CL J1226+3332 photometric redshift catalogue
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See also:
https://archive.stsci.edu/prepds/clash : CLASH home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 17 A17 --- Name Cluster name
19- 23 F5.3 --- z Mean spectroscopic redshift
27- 34 F8.4 deg RAdeg Right ascension (J2000)
37- 44 F8.4 deg DEdeg Declination (J2000)
48- 51 I4 --- Ngal Number of galaxies in the associated catalog
53- 60 A8 --- Cluster Cluster short name
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Byte-by-byte Description of file: [acmr]*.dat
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Bytes Format Units Label Explanations
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1- 23 A23 --- CLASHID Object ID Number [clash*cluster*nir_*SExtID*]
25- 32 A8 --- Cluster Cluster short Name
34- 41 F8.4 deg RAdeg Right Ascension (J2000)
43- 50 F8.4 deg DEdeg Declination (J2000)
52- 59 F8.3 pix Xpos X-pixel coordinate
61- 68 F8.3 pix Ypos Y-pixel coordinate
70- 74 I5 pix Area Isophotal aperture area (pixels)
76- 81 F6.2 arcsec FWHM Full width at half maximum for detection image
83- 88 F6.2 --- s2n Signal to Noise
(SExtFLUXAUTO/SExtFLUXERRAUTO)
90- 91 I2 --- photFlag SExtractor Photometric Flag
93- 94 I2 --- nfobs Number Filters Observed (out of 24)
96- 97 I2 --- nfdet Number Filters Detected (out of 24)
99 I1 --- PS [0/1] Pointsource flag
(0: extended / 1: point-like)
101-106 F6.2 --- theta Position Angle (CCW/x)
108-114 F7.3 pix a Profile RMS along major axis
116-121 F6.3 pix b Profile RMS along minor axis
123-129 F7.4 --- Backg Background-signal subtracted from Detection
131-138 F8.3 pix rf Fraction-of-light radii
140-143 F4.2 pix rk Kron-apertures in units of A or B
145-149 F5.2 pix rp Petrosian radii
151-159 F9.4 deg RABdeg BCG position in Right Ascension (J2000)
161-169 F9.4 deg DEBdeg BCG position in Declination (J2000)
171-176 F6.4 Mpc PDistBCG Projected Physical Distance to BCG
178-184 F7.3 mag F225WPZ ?=99 F225W/WFC3 restricted magnitude (AB);
best for photo-z (F225WWFC3PHOTOZ)
186-194 F9.3 mag e_F225WPZ F225W/WFC3 restricted magnitude uncertainty
(AB); best for photo-z (eF225WWFC3_PHOTOZ)
196-201 F6.3 mag F225WM ?=99 F225W/WFC3 moderated magnitude (AB);
best for stellar mass (F225WWFC3MASS)
203-210 F8.3 mag e_F225WM F225W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF225WWFC3_MASS)
212-217 F6.3 mag F275WPZ ?=99 F275W/WFC3 restricted magnitude (AB);
best for photo-z (F275WWFC3PHOTOZ)
219-226 F8.3 mag e_F275WPZ F275W/WFC3 restricted magnitude uncertainty
(AB); best for photo-z (eF275WWFC3_PHOTOZ)
228-233 F6.3 mag F275WM ?=99 F275W/WFC3 moderated magnitude (AB);
best for stellar mass (F275WWFC3MASS)
235-242 F8.3 mag e_F275WM F275W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF275WWFC3_MASS)
244-249 F6.3 mag F336WPZ ?=99 F336W/WFC3 restricted magnitude (AB);
best for photo-z (F336WWFC3PHOTOZ)
251-259 F9.3 mag e_F336WPZ F336W/WFC3 restricted magnitude uncertainty
(AB); best for photo-z (eF336WWFC3_PHOTOZ)
261-266 F6.3 mag F336WM ?=99 F336W/WFC3 moderated magnitude (AB);
best for stellar mass (F336WWFC3MASS)
268-276 F9.3 mag e_F336WM F336W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF336WWFC3_MASS)
278-283 F6.3 mag F390WPZ ?=99 F390W/WFC3 restricted magnitude (AB);
best for photo-z (F390WWFC3PHOTOZ)
285-293 F9.3 mag e_F390WPZ F390W/WFC3 restricted magnitude uncertainty
(AB); best for photo-z (eF390WWFC3_PHOTOZ)
295-300 F6.3 mag F390WM ?=99 F390W/WFC3 moderated magnitude (AB);
best for stellar mass (F390WWFC3MASS)
302-311 F10.3 mag e_F390WM F390W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF390WWFC3_MASS)
313-318 F6.3 mag F435WPZ ?=99 F435W/ACS restricted magnitude (AB)
best for photo-z (F435WACSPHOTOZ)
320-328 F9.3 mag e_F435WPZ F435W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF435WACS_PHOTOZ)
330-335 F6.3 mag F435WM ?=99 F435W/ACS moderated magnitude (AB)
best for stellar mass (F435WACSMASS)
337-345 F9.3 mag e_F435WM F435W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF435WACS_MASS)
347-352 F6.3 mag F475WPZ ?=99 F475W/ACS restricted magnitude (AB)
best for photo-z (F475WACSPHOTOZ)
354-362 F9.3 mag e_F475WPZ F475W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF475WACS_PHOTOZ)
364-369 F6.3 mag F475WM ?=99 F475W/ACS moderated magnitude (AB)
best for stellar mass (F475WACSMASS)
371-378 F8.3 mag e_F475WM F475W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF475WACS_MASS)
380-385 F6.3 mag F606WPZ ?=99 F606W/ACS restricted magnitude (AB)
best for photo-z (F606WACSPHOTOZ)
387-395 F9.3 mag e_F606WPZ F606W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF606WACS_PHOTOZ)
397-402 F6.3 mag F606WM ?=99 F606W/ACS moderated magnitude (AB)
best for stellar mass (F606WACSMASS)
404-411 F8.3 mag e_F606WM F606W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF606WACS_MASS)
413-418 F6.3 mag F625WPZ ?=99 F625W/ACS restricted magnitude (AB)
best for photo-z (F625WACSPHOTOZ)
420-428 F9.3 mag e_F625WPZ F625W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF625WACS_PHOTOZ)
430-435 F6.3 mag F625WM ?=99 F625W/ACS moderated magnitude (AB)
best for stellar mass (F625WACSMASS)
437-445 F9.3 mag e_F625WM F625W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF625WACS_MASS)
447-452 F6.3 mag F775WPZ ?=99 F775W/ACS restricted magnitude (AB)
best for photo-z (F775WACSPHOTOZ)
454-462 F9.3 mag e_F775WPZ F775W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF775WACS_PHOTOZ)
464-469 F6.3 mag F775WM ?=99 F775W/ACS moderated magnitude (AB)
best for stellar mass (F775WACSMASS)
471-478 F8.3 mag e_F775WM F775W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF775WACS_MASS)
480-485 F6.3 mag F814WPZ ?=99 F814W/ACS restricted magnitude (AB)
best for photo-z (F814WACSPHOTOZ)
487-495 F9.3 mag e_F814WPZ F814W/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF814WACS_PHOTOZ)
497-502 F6.3 mag F814WM ?=99 F814W/ACS moderated magnitude (AB)
best for stellar mass (F814WACSMASS)
504-512 F9.3 mag e_F814WM F814W/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF814WACS_MASS)
514-519 F6.3 mag F850LPPZ ?=99 F850LP/ACS restricted magnitude (AB)
best for photo-z (F850LPACSPHOTOZ)
521-528 F8.3 mag e_F850LPPZ F850LP/ACS restricted magnitude uncertainty
(AB) best for photo-z (eF850LPACS_PHOTOZ)
530-535 F6.3 mag F850LPM ?=99 F850LP/ACS moderated magnitude (AB)
best for stellar mass (F850LPACSMASS)
537-544 F8.3 mag e_F850LPM F850LP/ACS moderated magnitude uncertainty (AB)
best for stellar mass (eF850LPACS_MASS)
546-551 F6.3 mag F105WPZ ?=99 F105W/WFC3 restricted magnitude (AB)
best for photo-z (F105WWFC3PHOTOZ)
553-560 F8.3 mag e_F105WPZ F105W/WFC3 restricted magnitude uncertainty
(AB) best for photo-z (eF105WWFC3_PHOTOZ)
562-567 F6.3 mag F105WM ?=99 F105W/WFC3 moderated magnitude (AB)
best for stellar mass (F105WWFC3MASS)
569-575 F7.3 mag e_F105WM F105W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF105WWFC3_MASS)
577-582 F6.3 mag F110WPZ ?=99 F110W/WFC3 restricted magnitude (AB)
best for photo-z (F110WWFC3PHOTOZ)
584-590 F7.3 mag e_F110WPZ F110W/WFC3 restricted magnitude uncertainty
(AB) best for photo-z (eF110WWFC3_PHOTOZ)
592-597 F6.3 mag F110WM ?=99 F110W/WFC3 moderated magnitude (AB)
best for stellar mass (F110WWFC3MASS)
599-605 F7.3 mag e_F110WM F110W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF110WWFC3_MASS)
607-612 F6.3 mag F125WPZ ?=99 F125W/WFC3 restricted magnitude (AB)
best for photo-z (F125WWFC3PHOTOZ)
614-622 F9.3 mag e_F125WPZ F125W/WFC3 restricted magnitude uncertainty
(AB) best for photo-z (eF125WWFC3_PHOTOZ)
624-629 F6.3 mag F125WM ?=99 F125W/WFC3 moderated magnitude (AB)
best for stellar mass (F125WWFC3MASS)
631-639 F9.3 mag e_F125WM F125W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF125WWFC3_MASS)
641-646 F6.3 mag F140WPZ ?=99 F140W/WFC3 restricted magnitude (AB)
best for photo-z (F140WWFC3PHOTOZ)
648-655 F8.3 mag e_F140WPZ F140W/WFC3 restricted magnitude uncertainty
(AB) best for photo-z (eF140WWFC3_PHOTOZ)
657-663 F7.3 mag F140WM ?=99 F140W/WFC3 moderated magnitude (AB)
best for stellar mass (F140WWFC3MASS)
665-672 F8.3 mag e_F140WM F140W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF140WWFC3_MASS)
674-679 F6.3 mag F160WPZ ?=99 F160W/WFC3 restricted magnitude (AB)
best for photo-z (F160WWFC3PHOTOZ)
681-687 F7.3 mag e_F160WPZ F160W/WFC3 restricted magnitude uncertainty
(AB) best for photo-z (eF160WWFC3_PHOTOZ)
689-694 F6.3 mag F160WM ?=99 F160W/WFC3 moderated magnitude (AB)
best for stellar mass (F160WWFC3MASS)
696-702 F7.3 mag e_F160WM F160W/WFC3 moderated magnitude uncertainty (AB)
best for stellar mass (eF160WWFC3_MASS)
704-708 F5.3 --- zCluster Cluster Redshift
710-715 F6.3 --- zb1 [0/10] BPZ most likely redshift for the
First Peak
717-722 F6.3 --- e_zb1 Lower limit (95p confidence) for the First Peak
724-729 F6.3 --- E_zb1 Upper limit (95p confidence) for the First Peak
731-735 F5.2 --- Tb1 BPZ most likely spectral type for the
First Peak
737-740 F4.2 --- Odds1 P(z) contained within zb±2*0.03*(1+z)
for the First Peak
742-748 F7.2 --- Chi2 Poorness of BPZ fit: observed vs. model fluxes
750-756 F7.3 mag BMAG Absolute magnitude (AB) (B_JOHNSON) for the
First Peak
758-763 F6.2 [Msun] logM* ?=-99 Stellar Mass for the First Peak
(log10(M_sun))
765-770 F6.3 mag F814W ? Lensing-corrected F814WM magnitude
(F814WACSMASS_LensCor)
772-778 F7.3 mag BMAGLC ?=-99 Lensing-corrected Absolute Magnitude
(AB) (B_JOHNSON) (MB_LensCor)
780-786 F7.3 [Msun] logM*LC ?=-99 Lensing-corrected Stellar Mass for the
First Peak (log10(M_sun))
788-794 F7.3 --- zsp ?=-99 Spectroscopic Redshift [-99 if unknown]
796-808 A13 --- r_zsp Reference for the Spectroscopic Redshift
810-812 I3 --- q_zsp [0/2]?=-99 Quality of the Spectroscopic
Redshift [0:secure, 1:likely, 2:unsure] (1)
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Note (1): Quality of the Spectroscopic Redshift as follows:
0 = secure
1 = likely
2 = unsure
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History:
Copied at https://archive.stsci.edu/prepds/clash/
(End) Patricia Vannier [CDS] 22-Apr-2020