Type Ia supernovae and high-velocity white dwarfs

被引：34

作者：

Hansen, BMS ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Div Astron, Los Angeles, CA 90095 USA

来源：

ASTROPHYSICAL JOURNAL | 2003年 / 582卷 / 02期

关键词：

binaries : close; Galaxy : kinematics and dynamics; stellar dynamics; supernovae : general; white dwarfs;

D O I：

10.1086/344782

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

I examine the hypothesis that many of the high-velocity white dwarfs observed by Oppenheimer et al. are the remnants of donor stars from binaries that produced Type Ia supernovae (SNe Ia) via the single degenerate channel. If this channel is a significant contributor to the Galactic SN Ia rate, then the local density of such remnants with V-perpendicular to > 100 km s(-1) could be as high as 2 x 10(-4) pc(-3), comparable to the densities found by Oppenheimer et al. This white dwarf population differs from others in that it is composed exclusively of single stars. It is also drawn from the thin disk and consequently contains more young stars than the older kinematically hot white dwarf populations. Thus, the determination of the binary fraction among high-velocity white dwarfs can distinguish this population from kinematically similar populations, such as the thick-disk white dwarfs.

引用

页码：915 / 918

页数：4

共 38 条

[1] Combined analysis of the binary lens caustic-crossing event MACHO 98-SMC-1 [J].

Afonso, C ;

Alard, C ;

Albert, JN ;

Andersen, J ;

Ansari, R ;

Aubourg, E ;

Bareyre, P ;

Bauer, F ;

Beaulieu, JP ;

Bouquet, A ;

Char, S ;

Charlot, X ;

Couchot, F ;

Coutures, C ;

Derue, F ;

Ferlet, R ;

Glicenstein, JF ;

Goldman, B ;

Gould, A ;

Graff, D ;

Gros, M ;

Haissinski, J ;

Hamilton, JC ;

Hardin, D ;

de Kat, J ;

Kim, A ;

Lasserre, T ;

Lesquoy, E ;

Loup, C ;

Magneville, C ;

Marquette, JB ;

Maurice, E ;

Milsztajn, A ;

Moniez, M ;

Palanque-Delabrouille, N ;

Perdereau, O ;

Prévot, L ;

Regnault, N ;

Rich, J ;

Spiro, M ;

Vidal-Madjar, A ;

Vigroux, L ;

Zylberajch, S ;

Alcock, C ;

Allsman, RA ;

Alves, D ;

Axelrod, TS ;

Becker, AC ;

Cook, KH ;

Drake, AJ .

ASTROPHYSICAL JOURNAL, 2000, 532 (01) :340-352

[2] The relative lens-source proper motion in MACHO 98-SMC-1 [J].

Albrow, MD ;

Beaulieu, JP ;

Caldwell, JAR ;

DePoy, DL ;

Dominik, M ;

Gaudi, BS ;

Gould, A ;

Greenhill, J ;

Hill, K ;

Kane, S ;

Martin, R ;

Menzies, J ;

Naber, RM ;

Pollard, KR ;

Sackett, PD ;

Sahu, KC ;

Vermaak, P ;

Watson, R ;

Williams, A ;

Pogge, RW .

ASTROPHYSICAL JOURNAL, 1999, 512 (02) :672-677

[3] The MACHO project: Microlensing results from 5.7 years of Large Magellanic Cloud observations [J].

Alcock, C ;

Allsman, RA ;

Alves, DR ;

Axelrod, TS ;

Becker, AC ;

Bennett, DP ;

Cook, KH ;

Dalal, N ;

Drake, AJ ;

Freeman, KC ;

Geha, M ;

Griest, K ;

Lehner, MJ ;

Marshall, SL ;

Minniti, D ;

Nelson, CA ;

Peterson, BA ;

Popowski, P ;

Pratt, MR ;

Quinn, PJ ;

Stubbs, CW ;

Sutherland, W ;

Tomaney, AB ;

Vandehei, T ;

Welch, D .

ASTROPHYSICAL JOURNAL, 2000, 542 (01) :281-307

[4] MACHO 96-LMC-2: Lensing of a binary source in the Large Magellanic Cloud and constraints on the lensing object [J].

Alcock, C ;

Allsman, RA ;

Alves, DR ;

Axelrod, TS ;

Becker, AC ;

Bennett, DP ;

Cook, KH ;

Drake, AJ ;

Freeman, KC ;

Geha, M ;

Griest, K ;

Lehner, MJ ;

Marshall, SL ;

Minniti, D ;

Nelson, CA ;

Peterson, BA ;

Popowski, P ;

Pratt, MR ;

Quinn, PJ ;

Stubbs, CW ;

Sutherland, W ;

Tomaney, AB ;

Vandehei, T ;

Welch, D .

ASTROPHYSICAL JOURNAL, 2001, 552 (01) :259-267

[5] The MACHO Project Large Magellanic Cloud microlensing results from the first two years and the nature of the Galactic dark halo [J].

Alcock, C ;

Allsman, RA ;

Alves, D ;

Axelrod, TS ;

Becker, AC ;

Bennett, DP ;

Cook, KH ;

Freeman, KC ;

Griest, K ;

Guern, J ;

Lehner, MJ ;

Marshall, SL ;

Petersons, BA ;

Pratt, MR ;

Quinn, PJ ;

Rodgers, AW ;

Stubbs, CW ;

Sutherland, W ;

Welch, DL .

ASTROPHYSICAL JOURNAL, 1997, 486 (02) :697-726

[6] ON RELATIVE SUPERNOVA RATES AND NUCLEOSYNTHESIS ROLES [J].

ARNETT, WD ;

SCHRAMM, DN ;

TRURAN, JW .

ASTROPHYSICAL JOURNAL, 1989, 339 (01) :L25-L27

[7] IN SEARCH OF THE PROGENITORS OF TYPE IA SUPERNOVAE [J].

BRANCH, D ;

LIVIO, M ;

YUNGELSON, LR ;

BOFFI, FR ;

BARON, E .

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1995, 107 (717) :1019-1029

[8]

Branch D, 2001, AIP CONF PROC, V565, P31, DOI 10.1063/1.1377070

[9] Identification of the companion stars of type Ia supernovae [J].

Canal, R ;

Méndez, J ;

Ruiz-Lapuente, P .

ASTROPHYSICAL JOURNAL, 2001, 550 (01) :L53-L56

[10] Stellar population studies with the SDSS. I. The vertical distribution of stars in the Milky Way [J].

Chen, B ;

Stoughton, C ;

Smith, JA ;

Uomoto, A ;

Pier, JR ;

Yanny, B ;

Ivezic, Z ;

York, DG ;

Anderson, JE ;

Annis, J ;

Brinkmann, J ;

Csabai, I ;

Fukugita, M ;

Hindsley, R ;

Lupton, R ;

Munn, JA .

ASTROPHYSICAL JOURNAL, 2001, 553 (01) :184-197

← 1 2 3 4 →