2017MNRAS.468L..46N

Query : 2017MNRAS.468L..46N

2017MNRAS.468L..46N - Mon. Not. R. Astron. Soc., 468, L46-L49 (2017/June-2)

Discovery of a magnetic field in the δ Scuti F2m star ρ Pup.

NEINER C., WADE G.A. and SIKORA J.

Abstract (from CDS):

ρ Pup is a δ Scuti F2 pulsator, known to host a main radial mode as well as non-radial pulsations, with chemical peculiarities typical of evolved Am stars. We present a high-precision spectropolarimetric observations of this star, obtained with ESPaDOnS at the Canada-France-Hawaii Telescope in the frame of the BRITE spectropolarimetric survey. A magnetic field is clearly detected in ρ Pup, with a longitudinal field strength below 1 G. This makes ρ Pup the second known magnetic δ Scuti discovered, after HD 188774, and a possible cool evolved counterpart of the recently discovered ultraweakly magnetic Am family.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: individual: ρ Pup - stars: magnetic field - stars: variables: δ Scuti - stars: variables: δ Scuti

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* CP Oct dS* 03 09 53.7500021592 -83 31 53.581689012   8.01 7.61     F2/3Ib/II 62 0
2 HD 35929 dS* 05 27 42.7906489200 -08 19 38.446702140   8.55 8.11     F2IV/V 111 0
3 * gam Gem SB* 06 37 42.71050 +16 23 57.4095 1.98 1.92 1.92 1.86 1.87 A1.5IV+ 510 1
4 * rho Pup dS* 08 07 32.6488235 -24 18 15.567946 3.43 3.24 2.81 2.46 2.25 F5IIkF2IImF5II 302 0
5 HD 188774 dS* 19 55 10.0375808184 +41 17 10.271172480   9.05 8.81     A9IV 36 0

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