NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-08-22 T18:18:34 PDT
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Notes for object [HB89] 1423+242

5 note(s) found in NED.


1. 1994A&AS..105...91B
Re:4C +24.31
1423+242 (4C 24.31, Fig. 39) A 1.4 GHz VLA A array map of this quasar is
presented by Hintzen et al. (1983), which is in excellent agreement with
our image, as is the 8.4 GHz VLA A array map in Price et al. (1993).

2. 1992MNRAS.256..589P
Re:E 1423+242
E1423+242, z = 0.65. Also known as 4C 24.31 and PKS1423+242, the redshift
of this radio-selected AGN is uncertain. Although the Einstein count rate
is relatively high, the number of counts detected in all three bands is
low and it has a weak hard component.

3. 1992AJ....104.1311H
Re:[HB89] 1423+242
1423+242 (Fig. 11; z = 0.65). There is no good star image in the frame.
Neither the R nor narrowband QSO image is definitely extended in
comparison with the weak star images present. There is no faint structure
visible in the QSO continuum images, but there is a faint halo in the
continuum subtracted narrowband image.

4. 1974ApJ...193..505S
Re:4C +24.31
4C +24.31
The line observed at 4614 A is weak and quite wide. Identification of
the line as L{alpha}, C IV {lambda}1549, or C III] {lambda}1909 can be
virtually excluded since no lines corresponding to C IV, L{alpha} and
C IV, respectively, have been detected. Identification of the line as
Mg II {lambda}2798 is very likely.

5. 1970AJ.....75..764O
Re:4C +24.31
The QSO candidate has been spectroscopically studied by Schmidt
and he believes it is probably a QSO. The object was also identified
by Bolton et al. (1968, Austral. J. Phy, 21, 81) from the position of
1423 +24. Wills (1967, M. N. R. A. S., 135, 339) classified the region
as a blank field.


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