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● H e l p ● L e a r n t o e d i t ● C o m m u n i t y p o r t a l ● R e c e n t c h a n g e s ● U p l o a d f i l e
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P a g e s f o r l o g g e d o u t e d i t o r s l e a r n m o r e ● C o n t r i b u t i o n s ● T a l k
( T o p )
1 S e e a l s o
2 R e f e r e n c e s
T o g g l e t h e t a b l e o f c o n t e n t s
K P D 1 9 3 0 + 2 7 5 2
1 l a n g u a g e
● М а к е д о н с к и
E d i t l i n k s
● A r t i c l e ● T a l k
E n g l i s h
● R e a d ● E d i t ● V i e w h i s t o r y
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T o o l s
A c t i o n s
● R e a d ● E d i t ● V i e w h i s t o r y
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● W h a t l i n k s h e r e ● R e l a t e d c h a n g e s ● U p l o a d f i l e ● S p e c i a l p a g e s ● P e r m a n e n t l i n k ● P a g e i n f o r m a t i o n ● C i t e t h i s p a g e ● G e t s h o r t e n e d U R L ● D o w n l o a d Q R c o d e ● W i k i d a t a i t e m
P r i n t / e x p o r t
● D o w n l o a d a s P D F ● P r i n t a b l e v e r s i o n
A p p e a r a n c e
F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
light curve for KPD 1930+2752, adapted from Billères et al. (2000)[1]
Cygnus
19 h 32 m s [2]
+27° 58 ′ 35.5″[2]
13.82[2]
sdB +D?
5 km/s
RA: 1.744 mas /yr Dec.: -0.499 mas /yr
1.1411 ± 0.0492 mas [3]
2,900 ± 100 ly pc
KPD 1930+2752
KPD 1930+2752 B
136 min.
0.5 M ☉
0.97± 0.01 M ☉
V2214 Cyg, 2MASS J19321480+2758354, Gaia DR2 2026104646738300416
1930+2752 data
KPD 1930+2752 is a binary star system including a subdwarf B star and a probable white dwarf with relatively high mass.[6] type Ia supernova , a type of supernova which occurs when a white dwarf star takes on enough matter to approach the Chandrasekhar limit , the point at which electron degeneracy pressure would not be enough to support its mass. However, carbon fusion would occur before this limit was reached, releasing enough energy to overcome the force of gravity holding the star together and resulting in a supernova .
The total mass of the binary star system slightly exceeds the Chandrasekhar limit, making this system a candidate as a progenitor for a future type Ia supernova, although future mass loss is likely to reduce system mass below threshold.[7]
See also [ edit ]
IK Pegasi , the nearest supernova progenitor candidate
References [ edit ]
^ Brown, A. G. A. ; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties" . Astronomy & Astrophysics 616 . A1. arXiv :1804.09365 Bibcode :2018A&A...616A...1G doi :10.1051/0004-6361/201833051 Gaia DR2 record for this source at VizieR .
^ Kupfer, Thomas; et al. (2020), "The First Ultracompact Roche Lobe–Filling Hot Subdwarf Binary", The Astrophysical Journal , 891 (1 ): 45, arXiv :2002.01485 Bibcode :2020ApJ...891...45K , doi :10.3847/1538-4357/ab72ff S2CID 211032195
^ Neunteufel, P.; Yoon, S.-C.; Langer, N. (2019), "Evolution of helium star plus carbon-oxygen white dwarf binary systems and implications for diverse stellar transients and hypervelocity stars", Astronomy & Astrophysics , 627 : A14, arXiv :1904.12421 Bibcode :2019A&A...627A..14N , doi :10.1051/0004-6361/201935322 , S2CID 139106232
^ Geier, S.; Nesslinger, S.; Heber, U.; Przybilla, N.; Napiwotzki, R.; Kudritzki, R.-P. (2007). "The hot subdwarf B + white dwarf binary KPD 1930+2752. A supernova type Ia progenitor candidate". Astronomy and Astrophysics . 464 (1 ): 299–307. arXiv :astro-ph/0609742 Bibcode :2007A&A...464..299G . doi :10.1051/0004-6361:20066098 . S2CID 73533250 .
^ Is KPD 1930+2752 a good candidate type Ia supernova progenitor?
δ (Fawaris)
ε (Aljanah)
ζ
η
θ
ι1
ι2
κ
λ
μ
ν
ξ
o 1
o 2
ο3
π1
π2
ρ
σ
τ
υ
φ
χ
ψ
ω1
ω2
P
Q
4
8
9
15
16 (c )
17
20 (d )
22
23
26 (e )
27 (b 1
28 (b 2
29 (b 3
33
35
39
41
47
52
55
56
57
59 (f 1
61
63 (f 2
68 (A )
71 (g )
72
74
75
T
W
X
Y
RW
SS
SU
TT
AZ
BC
BI
CH
KY
V380
V389
V404
V476
V1027
V1057
V1143
V1191
V1334
V1489
V1500
V1668
V1794
V1974
V2214
V2513
7767
7912
8193
185435
187123
188753
191806
197037
806
1245
3
5
6
11
15
16
17
18
22
23
27
28
29
31
32
33
34
35
36
39
40
41
42
43
44
45
47
51
56
61
63
64 (PH1)
66
67
68
69
70
78
80
84
86 (PH2)
87
89
107
167
182
186
223
289
371
385
411
419
432
445
451
452
560
737
1229
1520
1625
1649
1708
134
135
136
137
138a
140
142
147
148
150
BD+40° 4210
BD+43 3654
Cygnus OB2 #8A
Cygnus OB2 #12
Cygnus X-1
Cygnus X-3
G79.29+0.46
G 208-44
G 208-45
GSC 03949-00967
HAT-P-17
KELT-9
KELT-20
KIC 8462852
KIC 9832227
KIC 11026764
KIC 11145123
KOI-5
KOI-74
KOI-81
KOI-256
MWC 349
N6946-BH1
PSR J2032+4127
SPECULOOS-3
W75N(B )-VLA2
WASP-48
WISE J2000+3629
Wolf 1069
DR 6
IC 5146
Messier 29
Messier 39
NGC 6811
NGC 6819
NGC 6834
NGC 6866
NGC 6871
NGC 6910
L1014
North America Nebula
Pelican Nebula
Sadr Region
Sh2-101
Sh2-106
Egg Nebula
IRAS 19475+3119
IRAS 20324+4057
Kronberger 61
M1-92
NGC 6826
NGC 6881
NGC 6884
NGC 7008
NGC 7026
NGC 7027
NGC 7048
Soap Bubble Nebula
4C +48.48
Cygnus A
ZTF J203349.8+322901.1
5b
6b
11b
15b
16b
17b
22b
23b
28b
32b
33b
34b
36b
39b
40b
41b
47b
56b
61b
64b (PH1b)
68b
69b
70b
78b
87c
186b
e
f
371b
c
409b
419b
432b
451b
452b
560b
737b
1229b
1520b
1625b
1652b
1658b
1649b
c
1708b
HD 185269 b
HD 187123 b
c
HD 191806 b
KELT-9b
KELT-20b
TrES-5b
t
e
t
e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=KPD_1930%2B2752&oldid=1219428129 " C a t e g o r i e s : ● C y g n u s ( c o n s t e l l a t i o n ) ● B i n a r y s t a r s ● O b j e c t s w i t h v a r i a b l e s t a r d e s i g n a t i o n s ● W h i t e d w a r f s ● B - t y p e s u b d w a r f s ● 2 M A S S o b j e c t s ● M u l t i p l e s t a r s t u b s ● W h i t e d w a r f s t a r s t u b s H i d d e n c a t e g o r y : ● A l l s t u b a r t i c l e s
● T h i s p a g e w a s l a s t e d i t e d o n 1 7 A p r i l 2 0 2 4 , a t 1 8 : 0 0 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
