The Knight Supernova Sample
for the Northern Hemisphere
 
Galaxies with High Type II Supernova Rates
 
Num.
GALAXY
T
R.A.
(2000)
DEC.
(2000)
BT
V(3K)
 km/sec
SN
Mmax
Reason
1
N697
5
01 51 17.3
+22 21 32
12.84
2844
--
--
2  
2
N2276
4
07 27 12.6
+85 45 20
11.93
2394
1962Q
16.9
1







1968V
15.7








1968W
16.6








1993X/II
16.3

3
N2750
5
09 05 48.1
+25 26 09
[12.60]
2928
--
--
1
4
N2964
4
09 42 53.9
+31 50 51
11.99
1580
--
--
1
5
N3079
5
10 01 58.2
+55 40 43
11.54
1285
2001CI/Ic
18.3
1
6
N3184
6
10 18 17.3
+41 25 26
10.36
826
1921B/(II:)
13.5
6  







1921C/(I)
11.0







1937F(II)
13.5







1999GI/II
14.5
7
N3198
5
10 19 54.9
+45 33 09
10.8
880
1966J/Ib
13.0
6







1999BW/II
17.8
8
N3310
4
10 38 46.1
+53 30 08
11.15
1169
1974C
16.5
1







1991N/Ic
15

9
N3631
5
11 21 02.7
+53 10 17
11.01
1343
1964A/IIp
17
6







1965L/(II)
16.0








1996BU/II 
17.3
10
N3655
5
11 22 54.7
+16 35 27
12.30
1806
--
--
3  
11
N3683
5
11 27 32.1
+56 52 43
[13.33]
1821
--
--
1
12
N3810
5
11 40 58.5
+11 28 17
11.35
1335
1997DQ/Ib
15.0
6







2000EW/Ic
14.9
13
N3938

11 52 24.8
+44 07 26
10.90
1036
1961U/II
13.7
6  







1964L/Ib
13.3

14
N3949
4
11 53 41.5
47 51 35
11.54
1007
2000DB/II
14.3
4  
15
N4041
4
12 02 12.0
+ 62 08 21
11.88
1364
1994W/IIp
13.5
1
16
N4088
4
12 05 35.4
+50 32 32
11.15
953
1991G/II
17
5  
17
N4162
4
12 11 51.8
+24 07 24
12.87
2871
1965G
14.0
6







2001HG/II
17.4
18
N4254V
5
12 18 49.4
+14 25 07
10.44
1350
1967H/II
14.6
1







1976Q
15.8







1986I/II
14
19
N4273V
5
12 19 55.6
+05 20 48
12 .39
1350
1936A/II
14.4
4  
20
N4303V
4
12 21 54.7
+04 28 20
10.19
1350
1926A/II
14.0
1







1961I/II
13.0







1964F/II
14.0







1999GN/II
16.0
21
N4490
7
12 30 36.7
+41 38 23
10.22
809
1982F/II
16
5  
22
N4527V
4
12 34 08.8
+02 39 13
11 .38
1350
1915A
15.5
1







1991T
13
23
N4535V
5
12 34 20.3
+08 11 53
10.59
1350
--
--
2  
24
N4536V
4
12 34 26.9
+02 11 19
11.16
1350
1981B/Ia
12.3
2  
25
N4631
7
12 42 07.7
+32 32 28
9.75
871
--
--
2  
26
N4654V
6
12 43 56.6
+13 07 03
11.10
1350
--
--
1
27
N5033
5
13 13 28.0
+36 35 38
10.75
1107
1950C
18.2
6  







1985L/II
12.5
28
N5194
4
13 29 53.3
+47 11 48
8.96
640
1994I/Ic
13.5
1
29
N5371
4
13 55 40.6
+40 27 24
11.32
2740
1994Y/II
15.0
2  
30
N5457
6
14 03 12.9
+54 21 03
8.31
475
1909A/Ib
12.1
6  







1951H/(II)
17.5







1970G/II
11.5
31
N5480
5
14 06 21.3
+50 43 39
[12.83]
1995
1988L
16.5
4  
32
N5600
5
14 23 49.6
+14 38 17
12.66
2547
--
--
3  
32
N5690
5
14 37 41.4
+02 17 17
12.5
1982
--
--
3  
34
N5775
5
14 53 57.7
+03 32 40
12.24
1886
1996AE/II
16.5
1
35
N5899
5
15 15 03.4
+42 02 58
12.50
2673
--
--
2  

N5962
5
15 36 31.7
+16 36 32
11.98
2094
--
--
1
36
N6181
5
16 32 20.9
+19 49 30
12.49
2427
1926B
14.8
1







1951I
15.7
37
N6946
6
20 34 52.0
+60 09 15
9.61
337
1917A/(II)
14.6
6  







1939C/(I:)
13.0







1948B/II
14.9







1968D/(II)
13.5







1969P/NT
13.9







1980K/II
11.4
38
N7339
4
22 37 46.9
+23 47 14
13.13
1007
1989L/II
16
5  
39
N7448
4
23 00 03.7
+15 58 57
12.20
1841
1980L
13.5
1







1997DT/Ia
15.3
40
N7541
4
23 14 43.1
+04 32 04
12.42
2321
1998DH/Ia
16.8
1

This list includes almost all of the galaxy's that:

a) are North of the Celestial Equator
b) are in the NGC or IC catalogues
c) are between Hubble Types Sbc(T=4) and Sdm(T=8) as listed in the RC3 catalogue
d) have recession velocities < 3,000 km/sec, measured  with respect to the 3K background
    listed in the RC3 catalogue.
e) are not HI gas depleted i.e with an uncorrected neutral hydrogen index < 2.9 (see RC3 catalogue)
f)  are not too near to the Milky Way, so that a search can be made out to a separation of 2 Mpc to
    look for companion galaxies.

The galaxies are belived to be high producers of SN II/Ib/Ic for the following reasons:

CANDIDATES

1 = Infrared Luminosity > 1.26 x 1010 LO and Projected Separation < 0.25 Mpc
2 = Reason 1 True But The Galaxy's Infrared Surface Brightness Falls Below The Knight Sample's Threshold.*

POSSIBLE CANDIDATES

3 = Infrared Luminosity > 1.26 x 1010 LO But Galaxy Has Projected Separation Between 0.25 And 0.40 Mpc.
4 = Infrared Luminosity > 8.0 x 109 LO,  High SB(IR)** & Projected Separation < 0.25 Mpc
5 = NO Infrared Measurements But Has a Companion With Projected Separtion < 0.25 Mpc
6 = Multiple Supernova - Two or more SN of type II, Ib, Ic or no type

*   Infrared Surface Brightness (SB(IR)) Threshold = 1.5 x 107 LO Kpc-2
** High SB(IR) Means a Galaxy With Infrared Surface Brightness > 3.0 x 107 LO Kpc-2


NOTE: The Knight Survey could not have been compiled without the CBAT SN lists at:

             http://cfa-www.harvard.edu/iau/cbat.html

We would like to express our gratitude to the peolpe who maintain this important list.

Back to Top