The structure of a recent nova shell as observed by ALMA

被引：13

作者：

Diaz, Marcos P. ^{[1
]}

Abraham, Zulema ^{[1
]}

Ribeiro, Valerio A. R. M. ^{[2
,3
,4
]}

Beaklini, Pedro P. B. ^{[1
]}

Takeda, Larissa ^{[1
]}

机构：

[1] Univ Sao Paulo IAG USP, Inst Astron Geofis & Ciencias Atmosfer, Dept Astron, Rua Matao 1226, BR-05508900 Sao Paulo, Brazil

[2] Univ Aveiro, Dept Fis, CIDMA, Campus Univ Santiago, P-3810193 Aveiro, Portugal

[3] Inst Telecomunicacoes, Campus Univ Santiago, P-3810193 Aveiro, Portugal

[4] Radboud Univ Nijmegen, IMAPP, Dept Astrophys, POB 9010, NL-6500 GL Nijmegen, Netherlands

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 480卷 / 01期

基金：

巴西圣保罗研究基金会;

关键词：

stars:; novae; cataclysmic variables; stars: white dwarfs; radio continuum: stars; MASS EJECTION; MODELS; SHOCKS;

D O I：

10.1093/mnrasl/sly121

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

High resolution ALMA observations of the recent (2.52 yr old) shell of Nova V5668 Sgr (2015) show a highly structured ionized gas distribution with small (10(15) cm) clumps. These are the smallest structures ever observed in the remnant of a stellar thermonuclear explosion. No extended contiguous emission could be found above the 2.5 sigma level in our data, while the peak hydrogen densities in the clumps reach 10(6) cm(-3). The millimetre continuum image suggests that large scale structures previously distinguished in other recent nova shells may result from the distribution of bright unresolved condensations.

引用

页码：L54 / L57

页数：4

共 27 条

[1] Near-infrared studies of the carbon monoxide and dust-forming Nova V5668 Sgr [J].

Banerjee, D. P. K. ;

Srivastava, Mudit K. ;

Ashok, N. M. ;

Venkataraman, V. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2016, 455 (01) :L109-L113

[2] Classical-Nova Contribution to the Milky Way's 26Al Abundance: Exit Channel of the Key 25Al(p,γ)26Si Resonance [J].

Bennett, M. B. ;

Wrede, C. ;

Chipps, K. A. ;

Jose, J. ;

Liddick, S. N. ;

Santia, M. ;

Bowe, A. ;

Chen, A. A. ;

Cooper, N. ;

Irvine, D. ;

McNeice, E. ;

Montes, F. ;

Naqvi, F. ;

Ortez, R. ;

Pain, S. D. ;

Pereira, J. ;

Prokop, C. ;

Quaglia, J. ;

Quinn, S. J. ;

Schwartz, S. B. ;

Shanab, S. ;

Simon, A. ;

Spyrou, A. ;

Thiagalingam, E. .

PHYSICAL REVIEW LETTERS, 2013, 111 (23)

[3] THE PHOTOEVAPORATION OF INTERSTELLAR CLOUDS .2. EQUILIBRIUM COMETARY CLOUDS [J].

BERTOLDI, F ;

MCKEE, CF .

ASTROPHYSICAL JOURNAL, 1990, 354 (02) :529-548

[4]

Bode M, 2008, CAM ASTROPH, pXII

[5] Binary orbits as the driver of γ-ray emission and mass ejection in classical novae [J].

Chomiuk, Laura ;

Linford, Justin D. ;

Yang, Jun ;

O'Brien, T. J. ;

Paragi, Zsolt ;

Mioduszewski, Amy J. ;

Beswick, R. J. ;

Cheung, C. C. ;

Mukai, Koji ;

Nelson, Thomas ;

Ribeiro, Valerio A. R. M. ;

Rupen, Michael P. ;

Sokoloski, J. L. ;

Weston, Jennifer ;

Zheng, Yong ;

Bode, Michael F. ;

Eyres, Stewart ;

Roy, Nirupam ;

Taylor, Gregory B. .

NATURE, 2014, 514 (7522) :339-+

[6] Radiative shocks create environments for dust formation in classical novae [J].

Derdzinski, Andrea M. ;

Metzger, Brian D. ;

lazzati, DaviDe .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2017, 469 (02) :1314-1329

[7] The Temporal Development of Dust Formation and Destruction in Nova Sagittarii 2015#2 (V5668 SGR): A Panchromatic Study [J].

Gehrz, R. D. ;

Evans, A. ;

Woodward, C. E. ;

Helton, L. A. ;

Banerjee, D. P. K. ;

Srivastava, M. K. ;

Ashok, N. M. ;

Joshi, V. ;

Eyres, S. P. S. ;

Krautter, Joachim ;

Kuin, N. P. M. ;

Page, K. L. ;

Osborne, J. P. ;

Schwarz, G. J. ;

Shenoy, D. P. ;

Shore, S. N. ;

Starrfield, S. G. ;

Wagner, R. M. .

ASTROPHYSICAL JOURNAL, 2018, 858 (02)

[8] Polarimetry and spectroscopy of the "oxygen flaring" DQ Herculis-like nova: V5668 Sagittarii (2015) [J].

Harvey, E. J. ;

Redman, M. P. ;

Darnley, M. J. ;

Williams, S. C. ;

Berdyugin, A. ;

Piirola, V. E. ;

Fitzgerald, K. P. ;

O'Connor, E. G. P. .

ASTRONOMY & ASTROPHYSICS, 2018, 611

[9] MILLIMETER AND SUBMILLIMETER CONTINUUM OBSERVATIONS OF NOVA CYGNI 1992 - A NEW TEST OF MASS EJECTION MODELS [J].

IVISON, RJ ;

HUGHES, DH ;

LLOYD, HM ;

BANG, MK ;

BODE, MF .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1993, 263 (03) :L43-L46

[10] Observational Clues to the Progenitors of Type Ia Supernovae [J].

Maoz, Dan ;

Mannucci, Filippo ;

Nelemans, Gijs .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, VOL 52, 2014, 52 :107-170

← 1 2 3 →