J/A+AS/135/83 JK'R magnitude of QSOs and around them (Marquez+, 1999)
Near infrared observations of quasars with extended ionized envelopes.
Marquez I., Durret F., Petitjean P.
<Astron. Astrophys. Suppl. Ser. 135, 83 (1999)>
=1999A&AS..135...83M 1999A&AS..135...83M
ADC_Keywords: QSOs ; Photometry, infrared
Keywords: galaxies: active - galaxies: fundamental parameters -
galaxies: interactions - galaxies: photometry - quasars: general -
infrared: galaxies
Abstract:
We have observed a sample of 15 and 8 quasars with redshifts between
0.11 and 0.87 (mean value 0.38) in the J and K' bands respectively.
Eleven of the quasars were previously known to be associated with
extended emission line regions. After deconvolution of the image,
substraction of the PSF when possible, and identification of
companions with the help of HST archive images when available,
extensions are seen for at least eleven quasars. However, average
profiles are different from that of the PSF in only four objects, for
which a good fit is obtained with an r1/4 law, suggesting that the
underlying galaxies are ellipticals. Redshifts were available in the
literature for surrounding objects in five quasar fields. For these
objects, one to five companion galaxies were found. One quasar even
belongs to a richness class 1 cluster. Most other quasars in our
sample have nearby galaxies in projection which may also be
companions. Environmental effects are therefore probably important to
account for the properties of these objects.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 127 380 Magnitudes and positions for quasars and nearby
detected objets
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- QSO Quasar name
17- 18 A2 --- [MDP99] Identification of objects near QSO (1)
20- 21 I2 h RAh Right ascension (1950)
23- 24 I2 min RAm Right ascension (1950)
26- 30 F5.2 s RAs Right ascension (1950)
32 A1 --- DE- Declination sign (1950)
33- 34 I2 deg DEd Declination (1950)
36- 37 I2 arcmin DEm Declination (1950)
39- 42 F4.1 arcsec DEs Declination (1950)
44- 49 F6.1 arcsec DRA Offset in right ascension from QSO
51- 55 F5.1 arcsec DDE Offset in declination from QSO
58- 61 F4.1 mag Jmag ? J magnitude
63- 66 F4.1 mag K'mag ? K' magnitude
68- 72 F5.2 mag Rmag ? R magnitude from published optical photometry
73 A1 --- n_Rmag [g] g: g magnitudes from reference 8.
75 I1 --- Ref ? Reference (2)
77- 79 I3 --- No ? Number of the object in the reference Ref (2)
82- 84 A3 --- Type Type (3)
85 A1 --- n_Type [c] c: Cosmic ray or noise event in reference 2.
86- 91 F6.4 --- z ? Redshift
93-127 A35 --- Ident Identifications
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Note (1): For the QSO itself, no number.
In Simbad: <[MDP99] A0401-350A N>, <[MDP99] PKS HHMM+DDd NN>,
<[MDP99] 3C NNN.N NN>, <[MDP99] 3C NNN.N A>, <[MDP99] 4C DD.NN NN>,
<[MDP99] 4C DD.NN A>, <[MDP99] Mrk 877 NN>, <[MDP99] Mrk 877 A>,
<[MDP99] MC 1745+163 NN>
Note (2): References and Simbad identifications as follows:
1 = Ellingson et al. (1991ApJ...378..476E 1991ApJ...378..476E)
<[EGY91] PKS 0812+020 Mask340NN>, <[EGY91] 4C 11.50 NN>
2 = Ellingson et al. (1989AJ.....97.1539E 1989AJ.....97.1539E)
<[EYG89] NNN> (for PKS 0837-120)
3 = Ellingson et al. (1991ApJS...76..455E 1991ApJS...76..455E)
<[EYG91] 3C 215 NNN>, <[EYG91] 3C 275.1 NNN>
4 = Yee et al. (1986ApJS...62..681Y 1986ApJS...62..681Y)
<[YGS86] 3C 281 NNN>, <[YGS86] 4C 11.50 NNN>, <[YGS86] 3C 334 NNN>
5 = Hintzen (1984ApJS...55..533H 1984ApJS...55..533H)
<[H84b] 0903+169 NN> for 3C 215.0, <[H84b] 1618+177 NN> for 3C 334.0
6 = Green & Yee (1984ApJS...54..495G 1984ApJS...54..495G)
<[GY84] 3C 281 NNA>, <[GY84] 3C 334 NNA>, <[GY84] PKS 1302-102 NNA>
7 = Ellingson et al. (1994AJ....107.1219E 1994AJ....107.1219E)
<[EYB94] PKS 2251+11 N>
8 = Kirhakos et al. (1994PASP..106..646K 1994PASP..106..646K)
<[KSS94] J225410.4+113639 NN> (for 4C 11.72)
9 = Ellingson & Yee (1994ApJS...92...33E 1994ApJS...92...33E)
,
10 = Robinson & Wampler (1972ApJ...171L..83R 1972ApJ...171L..83R)
<Gunn PKS 2251+11 N>
Note (3): Types as follows:
2 = galaxy
3 = probable galaxy
4 = star
QSO = quasar
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History:
Prepared via OCR at CDS.
(End) James Marcout, Patricia Bauer [CDS] 04-Apr-2000