J/AJ/141/126 HST photometry of NGC 5471 (Garcia-Benito+, 2011)
The 100 Myr star formation history of NGC 5471 from cluster and resolved
stellar photometry.
Garcia-Benito R., Perez E., Diaz A.I., Apellaniz J.M., Cervino M.
<Astron. J., 141, 126 (2011)>
=2011AJ....141..126G 2011AJ....141..126G
ADC_Keywords: H II regions ; Photometry, HST
Keywords: H II regions - Hertzsprung-Russell and C-M diagrams -
galaxies: star clusters: individual (NGC 5471)
Abstract:
We show that star formation in the giant HII region NGC 5471 has been
ongoing during the past 100 Myr. Using Hubble Space
Telescope/Wide-Field Planetary Camera 2 F547M and F675W, ground-based
JHKs, and GALEX FUV and NUV images, we have conducted a photometric
study of the star formation history (SFH) in the massive giant
extragalactic HII region NGC 5471 in M101. We perform a photometric
study of the color-magnitude diagram (CMD) of the resolved stars and
an integrated analysis of the main individual star-forming clusters
and of NGC 5471 as a whole.
Description:
We have retrieved ultraviolet NUV and FUV images of M101 from the
GALEX archive as well as broad- and narrowband optical images for
NGC 5471 from the Hubble Space Telescope (HST) archive. Finally, we
have obtained near-infrared JHK images. JHKs photometry was performed
on 2000 April 29, using the 3.58m Telescopio Nazionale Galileo (TNG)
at the Observatorio del Roque de los Muchachos in La Palma.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 74 614 Stellar photometry
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- Seq Index number
5- 10 F6.2 pix Xpix X pixel coordinate
12- 17 F6.2 pix Ypix Y pixel coordinate
19- 20 I2 h RAh Hour of Right Ascension (J2000)
22- 23 I2 min RAm Minute of Right Ascension (J2000)
25- 29 F5.2 s RAs Second of Right Ascension (J2000)
30 A1 --- DE- Sign of Declination (J2000)
31- 32 I2 deg DEd Degree of Declination (J2000)
34- 35 I2 arcmin DEm Arcminute of Declination (J2000)
37- 41 F5.2 arcsec DEs Arcsecond of Declination (J2000)
43- 47 F5.2 mag F547M HST/WFPC2 F547M filter magnitude
49- 52 F4.2 mag e_F547M Uncertainty in F547M
54- 58 F5.2 mag F675W' HST/WFPC2 F675W filter magnitude,
emission-line free
60- 63 F4.2 mag e_F675W' Uncertainty in F675W'
65- 69 F5.2 mag Color The (F547M-F675W') color index
71- 74 F4.2 mag e_Color Uncertainty in Color
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 02-Aug-2012