|
|
A listing of galaxies and their types that appear in the
declination bins +50-+90 are listed as follows: [magnitude generally
estimated around 12.5m or brighter](Note: NGC galaxies have no indication
and are produced with just their numbers). The first offering are galaxies
found in the Shapley-Ames Catalog of Galaxies).(NOTE: WITHIN THE FIELDS OF
THE TARGET GALAXIES {AN AREA OF ~15 ARCMIN}, [EXCEPTIONS ARE: NGC 3718,
5457, 2403, AND 3031, WHERE A LARGER FIELD IS USED]. OTHER GALAXIES OF
LESSER MAGNITUDES ARE ALSO INCLUDED IN THE COORDINATE STATISTCS. THESE
ENTITIES ARE BACKGROUND GALAXIES, AND MORE THAN LIKELY WOULD NOT BE
OBSERVED WITH THE EXCEPTION OF A DEEPER CCD/PHOTOGRAPHIC SURVEY, THUSLY
THEY WILL DISPLAY GREATER DISTANCE MODULI, AND SUPERNOVAE MAXIMUM
MAGNITUDES WOULD BE CONSIDERABLY FAINTER).
 List of Galaxies
Declination +50°
2500(Sc) 2549(SO) 2552(Sc or Sa) 2639(Sa) 2681(Sa)
2685(SO3) 2693(E2) 2701(Sc) 2841(Sb) 2950(RSBO)
3043(?) 3079(Scp) 3310(Sbc) 3353(?) 3445(Sc)
3448(Amor) 3458(SBa) 3549(Sbc) 3556(Sc) 3610(E5) 3613(E6) 3619(Sa)
3631(Sc) 3642(Sb) 3683(Sc) 3690(Spec) 3718(Sa) 3729(SB) 3738(Sd)
3756(Sc) 3780(Sc) 3888(Sc) 3898(Sa) 3917(Sc) 3953(SBbc) 3963(SBc)
3982(Sbc) 3992(SBb) 3998(SO) 4026(S) 4085(Sc) 4088(Sc) 4102(Sb)
4157(Sbc) 4290(SBb) 4814(Sb) 5204(Sd) 5376(Sbc) 5422(Sa) 5430(SBb)
5457(Sc) 5473(SBo) 5474(Scd) 5480(Sc) 5485(SO3) 5585(Sd) 5631(So)
5678(Sc) 5687(E3) 5820(SO) 5866(E3) 5879(Sb) 5905(SBb) 5907(Sc)
5908(Sb) 5982(E3) 5985(SBb) 6946(Sc)
Declination +60°
1569(SmIV) 1961(Sbp) 2347(Sb) 2366(SBm) 2403(Sc) 2460(Sab) 2742(Sc)
2768(So) 2787(SBo) 2880(SBo) 2976(Sd) 3031(Sb) 3034(Amor.)
3077(Amor.) 3259(Sb) 3359(SBc) 3945(RSBo) 4036(SO) 4041(Sc) 4125(E6)
4128(SO) 4236(SBd) 4256(Sb) 4605(Sc) 5308(SO) 5322(E4) 5949(Sc)
6015(Sc) 6951(Sb)
Declination +70°
2146(Sbp) 2314(E3) 2441(Sc) 2523(SBb) 2551(Sab) 2633(SBb) 2646(SBo)
2655(Sap) 2715(Sc) 2732(SO) 2748(Sc) 2985(Sab) 3065(SO) 3147(Sb)
3329(Sab) 3348(E0) 3403(Sbc) 3516(RSB0) 3735(Sc) 4291(E3) 4386(SO)
4589(E2) 4750(Sb) 6217(RSBc) 6340(Sa) 6412(SBc) 6503(Sc) 6643(Sc)
Declination +80°
2268(Sbc) 2276(Sc) 2300(E3) 2336(SBbc)
Breakdown of target galaxy types in the declination area +50-+90 degrees, by order:
Sc SO Sb Sa SBb SBO Sd Sbc Sab E3 Sbc Am SB SBc SBbc E6 (? ) E2 SBa E2
E5 EO
33 15 14 8 7 5 5 5 5 5 3 3 3 3 2 2 2 1 1 1
1 1
E4 Spec S Sm SBm SBd
1 1 1 1 1 1
There are several conclusions that may be determined from the
above data, plus a few surprises. It appears that the Sc type galaxy
(which might encompass Scd types) besides being the most numerous, is also
the most prolific SNe producer. In fact half of the SNe in this region
have occured in this type (NGC 6946 accounting for 6 events). [Note: that
while the S type galaxy was the second most prolific yielder of SNe, the
amount listed above is confusing...this is due by and large to the earlier
designation of the Zwicky list of galaxies. A designation of S for spirals
of all kinds or a designation of EL for elliptical...no differentiation is
given for the S types! thusly (in this case) the SN number exceeds the
number of galaxies of that type]. The Sb galaxy is another good one to
monitor, as well as the SBb which both produced an almost similiar ratio
of SNe per galaxy number.
|
