In the age of Kepler and CoRoT, extended observations have provided estimates of stellar pulsation frequencies that have achieved newlevels of precision, regularly exceeding fractional levels of a few parts in 104. These high levels of precision now in principle exceed the point where one can ignore the Doppler shift of pulsation frequencies caused by the motion of a star relative to the observer. We present a correction for these Doppler shifts and use previously published pulsation frequencies to demonstrate the significance of the effect. We suggest that reported pulsation frequencies should be routinely corrected for stellar line-of-sight velocity Doppler shifts, or if a line-of-sight velocity estimate is not available, the frame of reference in which the frequencies are reported should be clearly stated.

Why should we correct reported pulsation frequencies for stellar line-of-sight Doppler velocity shifts? / Davies G.R.; Handberg R.; Miglio A.; Campante T.L.; Chaplin W.J.; Elsworth Y.. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS. - ISSN 1745-3925. - ELETTRONICO. - 445:1(2014), pp. 94-98. [10.1093/mnrasl/slu143]

Why should we correct reported pulsation frequencies for stellar line-of-sight Doppler velocity shifts?

Miglio A.;
2014

Abstract

In the age of Kepler and CoRoT, extended observations have provided estimates of stellar pulsation frequencies that have achieved newlevels of precision, regularly exceeding fractional levels of a few parts in 104. These high levels of precision now in principle exceed the point where one can ignore the Doppler shift of pulsation frequencies caused by the motion of a star relative to the observer. We present a correction for these Doppler shifts and use previously published pulsation frequencies to demonstrate the significance of the effect. We suggest that reported pulsation frequencies should be routinely corrected for stellar line-of-sight velocity Doppler shifts, or if a line-of-sight velocity estimate is not available, the frame of reference in which the frequencies are reported should be clearly stated.
2014
Why should we correct reported pulsation frequencies for stellar line-of-sight Doppler velocity shifts? / Davies G.R.; Handberg R.; Miglio A.; Campante T.L.; Chaplin W.J.; Elsworth Y.. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. LETTERS. - ISSN 1745-3925. - ELETTRONICO. - 445:1(2014), pp. 94-98. [10.1093/mnrasl/slu143]
Davies G.R.; Handberg R.; Miglio A.; Campante T.L.; Chaplin W.J.; Elsworth Y.
File in questo prodotto:
Eventuali allegati, non sono esposti

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/900411
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 42
  • ???jsp.display-item.citation.isi??? ND
social impact