(Ref) Object type as listed in the reference "Ref"
(acronym) Object type linked to the acronym according to the original reference
() Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
quality : flag of quality
E ≥ 10"
D : 1-10" (and some old data)
C : 0.1-1"
B : 0.01-0.1" + 2MASS, Tyc
A : VLBI, Hipparcos
bibcode : bibcode of the coordinates reference
FK4
coord.
(ep=B1950 eq=1950) :
00 03 18.576 -00 23 37.73
[
91 77 90
]
Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" :
ra dec : right ascension and declination (unit and frame defined according to your Output Options)
Grey values are increasing the original precision due to the computation of frame transformations
(wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam)
[error ellipse] : measurement uncertainty, on (ra,dec) if the positional angle is 90 degrees, on (majaxis,minaxis) otherwise (in mas at defined epoch in the original catalogue),
position angle (in degrees North celestial pole to East)
quality : flag of quality
E ≥ 10"
D : 1-10" (and some old data)
C : 0.1-1"
B : 0.01-0.1" + 2MASS, Tyc
A : VLBI, Hipparcos
bibcode : bibcode of the coordinates reference
Gal
coord.
(ep=J2000) :
099.008087 -60.853008
[
91 77 90
]
Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode"
value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options
(redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity)
[error] : error of the corresponding value displayed before
(wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or '∼'(unknown)
quality : flag of quality ( A=best quality -> E=worst quality, ∼=unknown quality)
References (22 between 1850 and 2010) (Total 81)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
Follow
new references on this object
2010A&A...518A..10V
[ D ,1]
Astronomy and Astrophysics, volume 518, A10-10 (2010/7-2)
A catalogue of quasars and active nuclei: 13th edition.
VERON-CETTY M.-P. and VERON P.
<CDS Catalogue: VII/258>
2010A&A...523A..85G
[ D ,2]
Astronomy and Astrophysics, volume 523, A85-85 (2010/11-2)
The extinction law at high redshift and its implications.
GALLERANI S., MAIOLINO R., JUAREZ Y., NAGAO T., MARCONI A., BIANCHI S., SCHNEIDER R., MANNUCCI F., OLIVA T., WILLOTT C.J., et al.
2010AJ....140..546W
[ X ,1]
Astron. J., 140, 546-560 (2010/August-0)
Eddington-limited accretion and the black hole mass function at redshift 6.
WILLOTT C.J., ALBERT L., ARZOUMANIAN D., BERGERON J., CRAMPTON D., DELORME P., HUTCHINGS J.B., OMONT A., REYLE C. and SCHADE D.
2010ApJ...714..834C
[ D ,1]
Astrophys. J., 714, 834-839 (2010/May-1)
Ionization near zones associated with quasars at z ~ 6.
CARILLI C.L., WANG R., FAN X., WALTER F., KURK J., RIECHERS D., WAGG J., HENNAWI J., JIANG L., MENTEN K.M., et al.
2009A&A...494L..25J
[ D ,1]
Astronomy and Astrophysics, volume 494, L25-28 (2009/2-1)
The metallicity of the most distant quasars.
JUAREZ Y., MAIOLINO R., MUJICA R., PEDANI M., MARINONI S., NAGAO T., MARCONI A. and OLIVA E.
2009AJ....138..305J
[ X ,1]
Astron. J., 138, 305-311 (2009/July-0)
A survey of z ~ 6 quasars in the Sloan Digital Sky Survey deep stripe. II. Discovery of six quasars at z_AB_>21.
JIANG L., FAN X., BIAN F., ANNIS J., CHIU K., JESTER S., LIN H., LUPTON R.H., RICHARDS G.T., STRAUSS M.A., et al.
2009ApJ...702..833K
[ X C F ,7]
Astrophys. J., 702, 833-837 (2009/September-2)
Near-infrared spectroscopy of SDSS J0303-0019: a low-luminosity, High-Eddington-Ratio quasar at z ~ 6.
KURK J.D., WALTER F., FAN X., JIANG L., JESTER S., RIX H.-W. and RIECHERS D.A.
2009MNRAS.395.1925M
[ D F ,2]
Mon. Not. R. Astron. Soc., 395, 1925-1933 (2009/June-1)
Interpreting the transmission windows of distant quasars.
MASELLI A., FERRARA A. and GALLERANI S.
2008AJ....135.1057J
[ C D ,4]
Astron. J., 135, 1057-1066 (2008/March-0)
A survey of z ~ 6 quasars in the sloan digital sky survey deep stripe. I. A flux-limited sample at z_AB_< 21.
JIANG L., FAN X., ANNIS J., BECKER R.H., WHITE R.L., CHIU K., LIN H., LUPTON R.H., RICHARDS G.T., STRAUSS M.A., et al.
2008ApJ...687..848W
[ D ,1]
Astrophys. J., 687, 848-858 (2008/November-2)
Thermal emission from warm dust in the most distant quasars.
WANG R., CARILLI C.L., WAGG J., BERTOLDI F., WALTER F., MENTEN K.M., OMONT A., COX P., STRAUSS M.A., FAN X., et al.
2007AJ....134..617W
[]
Astron. J., 134, 617-627 (2007/August-0)
Millimeter and radio observations of z ~ 6 quasars.
WANG R., CARILLI C.L., BEELEN A., BERTOLDI F., FAN X., WALTER F., MENTEN K.M., OMONT A., COX P., STRAUSS M.A., et al.
2007ApJ...669...32K
[]
Astrophys. J., 669, 32-44 (2007/November-1)
Black hole masses and enrichment of z ~ 6 SDSS quasars.
KURK J.D., WALTER F., FAN X., JIANG L., RIECHERS D.A., RIX H.-W., PENTERICCI L., STRAUSS M.A., CARILLI C. and WAGNER S.
2006A&A...455..773V
[]
Astronomy and Astrophysics, volume 455, 773-777 (2006/8-4)
A catalogue of quasars and active nuclei: 12th edition.
VERON-CETTY M.-P. and VERON P.
<CDS Catalogue: VII/248>
2006AJ....132..117F
[]
Astron. J., 132, 117-136 (2006/July-0)
Constraining the evolution of the ionizing background and the epoch of reionization with z~6 quasars. II. A sample of 19 quasars.
FAN X., STRAUSS M.A., BECKER R.H., WHITE R.L., GUNN J.E., KNAPP G.R., RICHARDS G.T., SCHNEIDER D.P., BRINKMANN J. and FUKUGITA M.
2006AJ....132.2127J
[ K ]
Astron. J., 132, 2127-2134 (2006/November-0)
Probing the evolution of infrared properties of z~6 quasars: Spitzer observations.
JIANG L., FAN X., HINES D.C., SHI Y., VESTERGAARD M., BERTOLDI F., BRANDT W.N., CARILLI C.L., COX P., LE FLOC'H E., et al.
2006ARA&A..44..415F
[ C ,1]
Annual Rev. Astron. Astrophys., 44, 415-462 (2006)
Observational constraints on cosmic reionization.
FAN X., CARILLI C.L. and KEATING B.
2006ApJ...644...86S
[]
Astrophys. J., 644, 86-99 (2006/June-2)
Chandra observations of the highest redshift quasars from the Sloan Digital Sky Survey.
SHEMMER O., BRANDT W.N., SCHNEIDER D.P., FAN X., STRAUSS M.A., DIAMOND-STANIC A.M., RICHARDS G.T., ANDERSON S.F., GUNN J.E. and BRINKMANN J.
2004AJ....128..515F
[ X C D ,10]
Astron. J., 128, 515-522 (2004/August-0)
A survey of z>5.7 quasars in the Sloan Digital Sky Survey. III. Discovery of five additional quasars.
FAN X., HENNAWI J.F., RICHARDS G.T., STRAUSS M.A., SCHNEIDER D.P., DONLEY J.L., YOUNG J.E., ANNIS J., LIN H., LAMPEITL H., et al.
Annotations :
Annotations allow a user to add a note or report an error concerning the astronomical object and its data. It requires registration to post a note. See description . Please, have a look at Best practices. The list of all annotations to SIMBAD objects can be found here .