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A. D. Petford

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Featured researches published by A. D. Petford.

Astronomy and Astrophysics | 1990

Determination of temperatures and angular diameters of 114 F-M stars using the infrared flux method (IRFM)

D. E. Blackwell; A. D. Petford; S. Arribas; D. J. Haddock; M. J. Selby

Astronomy and Astrophysics | 1984

Is there an abundance anomaly for the 2.2 eV FeI lines in the solar spectrum

D. E. Blackwell; A. J. Booth; A. D. Petford

Astronomy and Astrophysics | 1989

Determination of the absolute flux from Vega at 2.250 μm

A. J. Booth; M. J. Selby; D. E. Blackwell; A. D. Petford; S. Arribas

Astronomy and Astrophysics | 1987

An LTE analysis of the solar photospheric Ti I and Cr I spectra: evidence for non-LTE in excitation

D. E. Blackwell; A. J. Booth; S. L. R. Menon; A. D. Petford

Astronomy and Astrophysics | 1989

Determination of the absolute flux from VEGA at 2.250 microns

A. J. Booth; M. J. Selby; D. E. Blackwell; A. D. Petford; S. Arribas

Astronomy and Astrophysics | 1980

Use of the infra-red flux method for determining stellar effective temperatures and angular diameters - The stellar temperature scale

D. E. Blackwell; A. D. Petford; Michael Shallis

The Observatory | 1984

Use of the recent Oxford data to calibrate the MN I oscillator strengths measured by Warner and Bowell

A. J. Booth; D. E. Blackwell; A. D. Petford; Michael Shallis

Monthly Notices of the Royal Astronomical Society | 1984

Measurement of relative oscillator strengths for MN I Transitions from levels in the range chi between 0 eV and 3 eV

A. J. Booth; D. E. Blackwell; A. D. Petford; Michael Shallis

Monthly Notices of the Royal Astronomical Society | 1982

Precision measurement of relative oscillator strengths for TI I. II - Transitions from levels /a-5/-F/1-4/ /0.81-0.84 eV/, /a-1/-D/2/ /0.90 eV/ and /a-3/-P/0-2/ /1.5-1.07 eV/

D. E. Blackwell; S. L. R. Menon; A. D. Petford; M. J. Shallis

Monthly Notices of the Royal Astronomical Society | 1982

Precision measurement of relative oscillator strengths. IX - Measures of Fe I transitions from levels a5 P1-3 /2.18-2.28 eV/, a3 P2 /2.28 eV/, a3 P0,1 /2.49-2.42 eV/, z7 D1-5 0 /2.48-2.40 eV/ and a3 H4-6 /2.45-2.40 eV/

D. E. Blackwell; A. D. Petford; Michael Shallis; G. J. Simmons

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M. J. Shallis

University of Oxford

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