J/ApJ/639/816 The FLAMINGOS Extragalactic Survey (Elston+, 2006)
The FLAMINGOS Extragalactic Survey.
Elston R.J., Gonzalez A.H., McKenzie E., Brodwin M., Brown M.J.I.,
Cardona G., Dey A., Dickinson M., Eisenhardt P.R., Jannuzi B.T., Lin Y.-T.,
Mohr J.J., Raines S.N., Stanford S.A., Stern D.
<Astrophys. J., 639, 816-826 (2006)>
=2006ApJ...639..816E 2006ApJ...639..816E
ADC_Keywords: Clusters, galaxy ; Galaxies, IR
Keywords: galaxies: clusters: general - galaxies: evolution - infrared: galaxies
Abstract:
Using the Florida Multi-object Imaging Near-IR Grism Observational
Spectrometer (FLAMINGOS), we have conducted the FLAMINGOS
Extragalactic Survey (FLAMEX), a deep imaging survey covering
7.1°2 within the 18.6°2 NOAO Deep Wide-Field Survey
(NDWFS) regions. FLAMEX is the first deep, wide-area, nearinfrared
survey to image in both the J and Ks filters, and is larger than any
previous NIR survey of comparable depth. The intent of FLAMEX is to
facilitate the study of galaxy and galaxy cluster evolution at 1<z<2
by providing rest-frame optical photometry for the massive galaxy
population at this epoch. This effort is designed to yield a public
data set that complements and augments the suite of existing surveys
in the NDWFS fields. We present an overview of FLAMEX and initial
results based on ∼150,000 Ks-selected sources in the Bootes field. We
describe the observations and reductions, quantify the data quality,
and verify that the number counts are consistent with results from
previous surveys. Finally, we comment on the utility of this sample
for detailed study of the ERO population, and present one of the first
spectroscopically confirmed z>1 galaxy clusters detected using the
joint FLAMEX, NDWFS, and Spitzer IRAC Shallow Survey data sets.
Description:
For the FLAMEX survey we rely purely on FLAMINGOS's imaging
capabilities and the wide field afforded by the Kitt Peak National
Observatory (KPNO) 2.1m telescope. At this telescope FLAMINGOS has a
21'x21' field of view with 0.61" pixels. Data were obtained on the
KPNO 2.1m telescope during an allocation of 97 nights spanning 2001
December to 2004 December.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
bootesj.dat 990 157613 Bootes J catalog
bootesks.dat 990 157613 Bootes Ks catalog
cetusj.dat 990 91414 Cetus J catalog
cetusks.dat 990 91414 Cetus Ks catalog
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Byte-by-byte Description of file: bootes* cetus*
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Bytes Format Units Label Explanations
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1- 6 I6 --- Seq ? Galaxy identification number (GALAXY_ID)
(only in the Bootes field)
8- 13 A6 --- Field Survey subfield identification code B_xxxx
(Bootes) or C_xxx (Cetus) (SUBFIELD)
15- 18 I4 --- Number Running object number (NUMBER) in Subfield
20- 23 I4 pix Xpeak x-coordinate of the brightest pixel
(XPEAK_IMAGE)
25- 28 I4 pix Ypeak y-coordinate of the brightest pixel
(YPEAK_IMAGE)
30- 37 F8.3 pix Ximage Object position along x (X_IMAGE)
39- 46 F8.3 pix Yimage Object position along y (Y_IMAGE)
48- 58 F11.7 deg RAdeg Right ascension of brightest pix (J2000)
(ALPHAPEAK_J2000)
60- 70 F11.7 deg DEdeg Declination of brightest pix (J2000)
(DELTAPEAK_J2000)
72- 74 I3 --- Flags Sexctractor extraction flags (FLAGS)
76- 84 F9.2 pix FWHM FWHM assuming a gaussian core (FWHM_IMAGE)
86- 95 F10.3 pix Frad1 Fraction-of-light radius (FLUX_RADIUS)
97-107 F11.3 pix Frad2 Fraction-of-light radius (FLUX_RADIUS)
109-119 F11.3 pix Frad3 Fraction-of-light radius (FLUX_RADIUS)
121-127 F7.4 mag magISO ?=99.9999 Isophotal magnitude (MAG_ISO)
129-135 F7.4 mag magISOCOR ?=99.9999 Corrected isophotal magnitude
(MAG_ISOCOR)
137-143 F7.4 mag magAuto ?=99.9999 Kron-like elliptical aperture
magnitude (MAG_AUTO)
145-151 F7.4 mag magBest ?=99.9999 Best of MAG_AUTO and MAG_ISOCOR
(MAG_BEST)
153-159 F7.4 mag magAp1.5 ?=99.9999 Fixed aperture (1.5") magnitude
vector (MAG_APER)
161-167 F7.4 mag magAp2 ?=99.9999 Fixed aperture (2") magnitude
vector (MAG_APER)
169-175 F7.4 mag magAp2.5 ?=99.9999 Fixed aperture (1.5") magnitude
vector (MAG_APER)
177-183 F7.4 mag magAp3 ?=99.9999 Fixed aperture (3") magnitude
vector (MAG_APER)
185-191 F7.4 mag magAp4 ?=99.9999 Fixed aperture (4") magnitude
vector (MAG_APER)
193-199 F7.4 mag magAp5 ?=99.9999 Fixed aperture (5") magnitude
vector (MAG_APER)
201-207 F7.4 mag magAp6 ?=99.9999 Fixed aperture (6") magnitude
vector (MAG_APER)
209-215 F7.4 mag magAp7 ?=99.9999 Fixed aperture (7") magnitude
vector (MAG_APER)
217-223 F7.4 mag magAp8 ?=99.9999 Fixed aperture (8") magnitude
vector (MAG_APER)
225-231 F7.4 mag magAp9 ?=99.9999 Fixed aperture (9") magnitude
vector (MAG_APER)
233-239 F7.4 mag magAp10 ?=99.9999 Fixed aperture (10") magnitude
vector (MAG_APER)
241-247 F7.4 mag magAp15 ?=99.9999 Fixed aperture (15") magnitude
vector (MAG_APER)
249-255 F7.4 mag magAp20 ?=99.9999 Fixed aperture (20") magnitude
vector (MAG_APER)
257-263 F7.4 mag e_magISO ?=99.9999 RMS error for isophotal magnitude
(MAGERR_ISO)
265-271 F7.4 mag e_magISOCOR ?=99.9999 RMS error for corrected isophotal
magnitude (MAGERR_ISOCOR)
273-279 F7.4 mag e_magAuto ?=99.9999 RMS error for AUTO magnitude
(MAGERR_AUTO)
281-287 F7.4 mag e_magBest ?=99.9999 RMS error for MAG_BEST
(MAGERR_BEST)
289-295 F7.4 mag e_magAp1.5 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
297-303 F7.4 mag e_magAp2 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
305-311 F7.4 mag e_magAp2.5 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
313-319 F7.4 mag e_magAp3 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
321-327 F7.4 mag e_magAp4 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
329-335 F7.4 mag e_magAp5 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
337-343 F7.4 mag e_magAp6 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
345-351 F7.4 mag e_magAp7 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
353-359 F7.4 mag e_magAp8 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
361-367 F7.4 mag e_magAp9 ?=99.9999 RMS error vector for fixed
aperture mag (MAGERR_APER)
369-375 F7.4 mag e_magAp10 ?=99.9999 RMS error vector for fixed
aperture (MAGERR_APER)
377-383 F7.4 mag e_magAp15 ?=99.9999 RMS error vector for fixed
aperture (MAGERR_APER)
385-391 F7.4 mag e_magAp20 ?=99.9999 RMS error vector for fixed
aperture (MAGERR_APER)
393-403 E11.8 ct/s Fauto Flux within a Kron-like elliptical aperture
(FLUX_AUTO)
405-415 F11.6 ct/s e_Fauto ?=99.9999 RMS error for AUTO flux
(FLUXERR_AUTO)
417-421 F5.2 --- rKron Kron aperture radius in units of A or B
(KRON_RADIUS)
423-434 E12.9 ct Backg Background counts at centroid position
(BACKGROUND)
436-442 F7.5 ct Thresh Detection threshold above background
(THRESHOLD)
444-458 E15.9 ct/s Fmax Peak flux above background (FLUX_MAX)
460-464 I5 pix2 Area Isophotal area above Analysis threshold
(ISOAREA_IMAGE)
466-477 E12.7 pix2 X2i Variance along x (X2_IMAGE)
479-490 E12.7 pix2 Y2i Variance along y (Y2_IMAGE)
492-504 E13.7 pix2 XYi Covariance between x and y (XY_IMAGE)
506-517 E12.7 deg2 X2w Variance along X-WORLD (alpha) (X2_WORLD)
519-530 E12.7 deg2 Y2w Variance along Y-WORLD (delta) (Y2_WORLD)
532-544 E13.7 deg2 XYw Covariance between X-WORLD and Y-WORLD
(XY_WORLD)
546-557 E12.7 pix-2 CXXi Cxx parameter of object ellipse (CXX_IMAGE)
559-570 E12.7 pix-2 CYYi Cyy parameter of object ellipse (CYY_IMAGE)
572-584 E13.7 pix-2 CXYi Cxy parameter of object ellipse (CXY_IMAGE)
586-597 E12.7 deg-2 CXXw Cxx parameter of object ellipse (CXX_WORLD)
599-610 E12.7 deg-2 CYYw Cyy parameter of object ellipse (CYY_WORLD)
612-624 E13.7 deg-2 CXYw Cxy parameter of object ellipse (CXY_WORLD)
626-636 E11.6 pix-2 CXXie Cxx parameter of error ellipse
(ERRCXX_IMAGE)
638-648 E11.6 pix-2 CYYie Cyy parameter of error ellipse
(ERRCYY_IMAGE)
650-661 E12.9 pix-2 CXYie Cxy parameter of error ellipse
(ERRCXY_IMAGE)
663-673 E11.9 deg-2 CXXwe Cxx parameter of error ellipse
(ERRCXX_WORLD)
675-685 E11.9 deg-2 CYYwe Cyy parameter of error ellipse
(ERRCYY_WORLD)
687-698 E12.9 deg-2 CXYwe Cxy parameter of error ellipse
(ERRCXY_WORLD)
700-710 E11.9 deg Aw Profile RMS along major axis (A_WORLD)
712-722 E11.9 deg Bw Profile RMS along minor axis (B_WORLD)
724-734 E11.9 deg e_Aw World RMS position error along major axis
(ERRA_WORLD)
736-746 E11.6 deg e_Bw World RMS position error along minor axis
(ERRB_WORLD)
748-752 F5.1 deg PAw [-90,90] Position angle (CCW/world-x)
(THETA_WORLD)
754-759 F6.2 deg PA [-90,90] Position angle (east of north)
(J2000) (THETA_J2000)
761-765 F5.1 deg e_PAw [-90,90] Error ellipse pos. angle
(CCW/world-x) (ERRTHETA_WORLD)
767-771 F5.1 deg e_PA [-90,90] J2000 error ellipse pos. angle
(east of north) (ERRTHETA_J2000)
773-778 F6.3 --- Elong Elongation, a/b (ELONGATION)
780-784 F5.3 --- Ell Ellipicity, 1-b/a (ELLIPTICITY)
786-800 F15.13 --- Exp Relative exposure weight (EXPOSURE)
802-808 F7.4 mag e_magAutoS ?=99.9999 From simulations (MAGERR_AUTO)
810-816 F7.4 mag e_magAp1.5s ?=99.9999 From simulations (MAGERR_APER)
818-824 F7.4 mag e_magAp2s ?=99.9999 From simulations (MAGERR_APER)
826-832 F7.4 mag e_magAp2.5s ?=99.9999 From simulations (MAGERR_APER)
834-840 F7.4 mag e_magAp3s ?=99.9999 From simulations (MAGERR_APER)
842-848 F7.4 mag e_magAp4s ?=99.9999 From simulations (MAGERR_APER)
850-856 F7.4 mag e_magAp5s ?=99.9999 From simulations (MAGERR_APER)
858-864 F7.4 mag e_magAp6s ?=99.9999 From simulations (MAGERR_APER)
866-872 F7.4 mag e_magAp7s ?=99.9999 From simulations (MAGERR_APER)
874-880 F7.4 mag e_magAp8s ?=99.9999 From simulations (MAGERR_APER)
882-888 F7.4 mag e_magAp9s ?=99.9999 From simulations (MAGERR_APER)
890-896 F7.4 mag e_magAp10s ?=99.9999 From simulations (MAGERR_APER)
898-904 F7.4 mag e_magAp15s ?=99.9999 From simulations (MAGERR_APER)
906-912 F7.4 mag e_magAp20s ?=99.9999 From simulations (MAGERR_APER)
914-918 F5.2 mag magAutoS 50% completeness limit (MAG_AUTO)
920-924 F5.2 mag magAutoS4 4" 50% completeness limit (MAG_AUTO)
926-930 F5.2 mag magAutoS5 5" 50% completeness limit (MAG_AUTO)
932-936 F5.2 mag magAutoS6 6" 50% completeness limit (MAG_AUTO)
938-942 F5.2 mag magAutoS7 7" 50% completeness limit (MAG_AUTO)
944-948 F5.2 mag magAutoS8 8" 50% completeness limit (MAG_AUTO)
950-954 F5.2 mag magAutoS9 9" 50% completeness limit (MAG_AUTO)
956-960 F5.2 mag magAutoS10 10" 50% completeness limit (MAG_AUTO)
962-966 F5.2 mag magAutoS15 15" 50% completeness limit (MAG_AUTO)
968-972 F5.2 mag magAutoS20 20" 50% completeness limit (MAG_AUTO)
974-990 E17.15 --- Proba Computed object detection probability
(from 6" magnitude and limit)
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History:
Copied at http://flamingos.astro.ufl.edu/extragalactic/data.html
(End) Marianne Brouty [CDS] 15-Jun-2007