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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The structure of a recent nova shell as observed by ALMA

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Author(s):
Diaz, Marcos P. [1] ; Abraham, Zulema [1] ; Ribeiro, Valerio A. R. M. [2, 3, 4] ; Beaklini, Pedro P. B. [1] ; Takeda, Larissa [1]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo IAG USP, Inst Astron Geofis & Ciencias Atmosfer, Dept Astron, Rua Matao 1226, BR-05508900 Sao Paulo - Brazil
[2] Inst Telecomunicacoes, Campus Univ Santiago, P-3810193 Aveiro - Portugal
[3] Univ Aveiro, Dept Fis, CIDMA, Campus Univ Santiago, P-3810193 Aveiro - Portugal
[4] Radboud Univ Nijmegen, IMAPP, Dept Astrophys, POB 9010, NL-6500 GL Nijmegen - Netherlands
Total Affiliations: 4
Document type: Journal article
Source: Monthly Notices of the Royal Astronomical Society; v. 480, n. 1, p. L54-L57, OCT 2018.
Web of Science Citations: 2
Abstract

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. (AU)

FAPESP's process: 15/16489-4 - Spatially resolved multiwavelength models of nova shells
Grantee:Marcos Perez Diaz
Support type: Research Grants - Visiting Researcher Grant - International
FAPESP's process: 14/10326-3 - Study of neon novae using data cubes and 3D photoionization modeling
Grantee:Larissa Takeda
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 14/07460-0 - Targets for LLAMA: study of variability of radio sources at 43 GHz (band 1) and search for correlation with interferometric images
Grantee:Pedro Paulo Bonetti Beaklini
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 09/54006-4 - A computer cluster for the Astronomy Department of the University of São Paulo Institute of Astronomy, Geophysics and Atmospheric Sciences and for the Cruzeiro do Sul University Astrophysics Center
Grantee:Elisabete Maria de Gouveia Dal Pino
Support type: Multi-user Equipment Program