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Date and Time of the Query: 2019-08-22 T10:39:51 PDT
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Notes for object NGC 7603

8 note(s) found in NED.


1. 2004MNRAS.350.1049G
Re:NGC 7603
9.29 NGC 7603 NGC 7603 has been monitored spectrophotometrically in the
visible for 20 years by Kollatschny, Bischoff & Dietrich (2000). Their
continuum flux at 5080 {Angstrom} is plotted in Fig. 1. The general
features of the continuum variations are also seen in the
IR. Unfortunately, there was no IR coverage around the continuum peak at
~ JD 2449270. The sharp spike in continuum emission at JD 2448862 does
not seem to have affected the IR observation on JD 2448874. The JHK
fluxes and colours at the time of the first IR observation (JD 2443719)
are consistent with an ordinary underlying galaxy. From the Kollatschny
et al. (2000) data it is probable that the nuclear activity was then
close to its lowest point.
The cross-correlation programme does not yield a useful output.

2. 2002AJ....124..675C
Re:UGC 12493
Seyfert 1.5, Mrk 530.

3. 1999ApJ...516...97N
Re:Mrk 0530
Mrk 530: RC3 lists the major axis P.A._RC3_ = 165 ^deg^ and
log R_25_ = 0.18. UGC also gives the major axis P.A. = 165 ^deg^ at a
diameter of 1.58' x 0.89' in B. ESGC lists the major axis P.A. = 5^deg^
at a diameter of 2.57' x 1.95'.

4. 1998AJ....116.2682C
Re:IRAS 23163-0001
NGC 7603, Mrk 530. Seyfert 1.5. Steep spectrum (Edelson 1987), compact
radio core (Sadler et al. 1995).

5. 1996A&AS..115..439E
Re:NGC 7603
NGC 7603 is a Seyfert galaxy which has shown variability from type Seyfert 1
to Seyfert 1.9 and back again to Seyfert 1 over a period of about a decade
(Goodrich 1989). It has been observed in the radio continuum by van der Hulst
et al. (1981) using the VLA.

6. 1995MNRAS.276.1262K
Re:MRK 0530
Markarian 530: (NGC 7603) Type 1(1.5). Host galaxy: spiral with
companion (UGC). Radio: the C-array source is slightly extended and
contains the compact point source revealed in the A-array map. The C-
array flux may be in error by up to 20 per cent as a result of an
unreliable calibration source.

7. 1976RC2...C...0000d
Re:NGC 7603
= MRK 0530
= Arp 092
Type 1 Seyfert nucleus.
Connected to a compact companion 0.9 arcmin south-following with
an extremely discordant redshift.
Description and Isodensitometry:
Ap. J. (Letters), 194, L125, 1974.
Photograph:
Astrophys. Lett., 7, 221, 1970.
IAU Symp. No. 44, 387, 1972.
Spectrum:
Astrophys. Lett., 7, 221, 1970.
Spectrum (velocity of companion = 16,900 km/sec):
Ap. J., 192, 581, 1974.
Astrofizika, 10, 485, 1974.

8. 1973UGC...C...0000N
Re:UGC 12493
Arp 92
Paired with companion at 1.0, 120, 0.2 x 0.2, bridge
Strongly discordant redshifts, v = 8700 for UGC 12493, v = 16800 for companion;
see Evans, D. E. (ed.), "External Galaxies and Quasi-stellar Objects", IAU
Symp. 44, 380.
In Arp's class "spiral galaxies with E galaxy companion's on arms"
"Very faint connection shows better in red" (Arp)


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