Simon Jeffery's Publications

Scientific Papers 2000 +


Posters
2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994
Armagh Observatory Preprints

submitted

Improved opacities and pulsation stability in subluminous B and O stars
C.S. Jeffery, H. Saio, 2007. MNRAS, submitted
Origin of the early-type R stars: a binary-merger solution to a century-old problem
R.G. Izzard, C.S. Jeffery, J. Lattanzio, 2007. A&A, submitted
The binary properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Vir)
M. Vuckovic, C. Aerts, R. Ostensen, G. Nelemans, H. Hu, C.S. Jeffery, V.S. Dhillon. T.R. Marsh, 2007. A&A submitted

in press

An abundance analysis of a chemically peculiar B star -- JL87
A. Ahmad, N.T. Behara, C.S. Jeffery, T. Sahin, V.M. Woolf, 2007, A&A, in press
Stellar Pulsation and High Time Resolution Astrophysics
C.S. Jeffery, 2006, Proc. of 2nd Conf. on HTRA, in press
Gravity-mode pulsations in subdwarf B stars: a critical test of stellar opacity
C.S. Jeffery, H. Saio, 2006. Proc. of European White Dwarfs Workshop, in press

2007

Mass loss and yield uncertainty in low-mass asymptotic giant branch stars
R.J. Stancliffe, C.S. Jeffery, 2007. MNRAS 375, 1280


2006

Stellar archaeology: the evolving spectrum of FG Sge
C.S. Jeffery, D. Schoenberner, 2006. A&A 459, 885
Gravity-mode pulsations in subdwarf B stars: a critical test of stellar opacity
C.S. Jeffery, H. Saio, 2006. MNRAS 372, L48-L52
On the angular momentum evolution of merged white dwarfs
K.N. Gourgouliatos, C.S. Jeffery, 2006. MNRAS 371, 1381
Fe-bump instability: the excitation of pulsations in subdwarf B and other low-mass stars
C.S. Jeffery, H. Saio, 2006. MNRAS 371, 659
LTE model atmospheres with new opacities: I. Methods and General Properties
Behara, N. T. , Jeffery, C. S., 2006. A&A, 451, 643-650
abstract | pdf | ps | ADS
High-speed colourimetry of the subdwarf B star SDSSJ171722.08+58055.8 with ULTRACAM
Aerts, C.; Jeffery, C. S.; Fontaine, G.; Dhillon, V. S.; Marsh, T. R.; Groot, P. 2006, MNRAS 367, 1317
Nucleosynthesis in Binary Stars
Jeffery, C.S., Tout, C.A., Lattanzio, J.C., 2006, Science 311, 345 - 346
link to article online
An analysis of ultraviolet spectra of Extreme Helium Stars and new clues to their origins
Pandey, G. J., Lambert, D. L., Rao, N. K., Jeffery, C. S., 2005. ApJ 638, 454
abstract | pdf | ps | ADS

Ultracam photometry of pulsating subdwarf B stars
Jeffery, C.S., Aerts, C., Dhillon, V.S., Marsh, T.R., 2006, Balt. Ast., 15, 259
abstract | pdf | ps | ADS
The MSST Campaign: 4m spectroscopy of PG1605+072
Jeffery, C.S., Heber, U., Dreizlerl, S., O'Toole, S.J., Schuh, S.L., Woolf, V.M., Falter, S., Nitta, A., Kleinman, S., Krzesinski, J., Bill\'eres, M., 2006, Balt. Ast., 15, 321
Chemical abundances of helium-rich subdwarf B stars
Ahmad, A., Jeffery C. S., 2006, Balt. Ast., 15, 139
abstract | pdf | ps | ADS
Spectroscopic Analysis of Sdb Binaries from the Spy Project
Karl, C., Heber, U., Jeffery, S., Napiwotzki, R., Geier, S., 2006, Balt. Ast., 15, 151
Spectral analysis of sdB-He stars from the SDSS
Ahmad, A., Winter, C., Jeffery C. S., 2006, Balt. Ast., 15, 159
abstract | pdf | ps | ADS
Hot subdwarfs from low-dispersion surveys: methods of extraction, and automatic analysis
Winter, C., Jeffery C. S., Ahmad, A., Morgan, D.R., 2006, Balt. Ast., 15, 69
abstract | pdf | ps | ADS
New model atmospheres: continuous and line opacities
Behara, N.T., Jeffery C. S., 2006, Balt. Ast., 15, 115
abstract | pdf | ps | ADS
Improved He line formation for extreme helium stars
Przybilla, N., Butler, K., Heber, U., Jeffery, C.S., 2006, Balt. Ast., 15, 163
abstract | pdf | ps | ADS
Non-LTE metal abundances in the EHes V652 Her and HD144941
Przybilla, N., Nieva, M. F., Heber, U., Jeffery, C.S., 2006, Balt. Ast., 15, 127
abstract | pdf | ps | ADS
High-speed ultracam colorimetry of the subdwarf B star SDSS J171722.08+58055.8
Aerts, C., Jeffery, C.S., Dhillon, V. M., Marsh, T. R., Groot, P., 2006, Balt. Ast., 15, 275
abstract | pdf | ps | ADS
Confirming the binary nature of PG1544+488 with FUSE
Ahmad, A., Jeffery, C. S., Fullerton, A. W., 2006, "Astrophysics in the far ultraviolet: Five years with FUSE", ASP Conf Ser. 348, 203

2005

Extreme helium stars: non-LTE matters. The unique objects V652 Her and HD 144941
Przybilla, N., Butler, K., Heber, U., Jeffery, C.S., 2005. A&A 443, L25.
abstract | pdf | ps | ADS
Multicolour high-speed photometry of the pulsating subdwarf B star PG0014+067 with ULTRACAM
Jeffery, C. S., Aerts, C., Dhillon, V. S., Marsh, T. R., Gaensicke, B., 2005. MNRAS, 362, 66.
abstract | pdf | ps | ADS
The Multisite Spectroscopic Telescope Campaign: 2m spectroscopy of the V361 Hya variable PG1605+072
O'Toole, S. J., Heber, U., Jeffery, C. S., Dreizler, S., Schuh, S. L., Woolf, V. M., Falter, S., Green, E. M., For, B..-Q., Hyde, E.A., Kjeldsen, H., Mauch, T., White, B. A., 2005. A&A, 440, 667.
abstract | pdf | ps | ADS
Discovery of pulsations in helium-rich sdB star LS IV-14 116
Ahmad, A., Jeffery, C. S. 2005. A&A, 437, L51.
abstract | pdf | ps | ADS
Pulsations in subdwarf B stars
Jeffery, C. S., 2005, JAA. 26, 261
abstract | pdf | ps | ADS

Mode identification in pulsating sdB stars from ULTRACAM observations
Jeffery, C. S., Dhillon, V. S., Marsh, T. R., Ramachandran, B., 2005, in 14th European Workshop on White Dwarfs, ASPC 334, 536.
abstract | pdf | ps | ADS
Model atmospheres for hot evolved stars with opacity sampling
Behara, N. T., Jeffery C. S., 2005, in 14th European Workshop on White Dwarfs, ASPC 334, 253.
Spectroscopic analyses of helium-rich subdwarf B stars
Ahmad, A., Jeffery C. S., 2005, in 14th European Workshop on White Dwarfs, ASPC 334, 536

2004

Abundances of Neutron-Capture Elements in the Hot Extreme Helium Stars V1920 Cygni and HD 124448
Pandey, G. J., Lambert, D. L., Rao, N. K., Jeffery, C. S., 2004. ApJ, 602L, 13.
Discovery of a spectroscopic binary comprising two hot helium-rich subdwarfs
Ahmad, A., Jeffery, C. S., Fullerton, A. W., 2004. A&A, 418, 275.
Multicolour high-speed photometry of pulsating subdwarf B stars with ULTRACAM
Jeffery, C. S., Dhillon, V. S., Marsh, T. R., Ramachandran, B., 2004. MNRAS, 352, 699.
Synthetic photometry for non-radial pulsations in subdwarf B stars
Ramachandran, B., Jeffery, C. S., Townsend, R. H. D., 2004. A&A, 428, 209.
Physical parameters of helium-rich subdwarf B stars from spectral energy distributions
A. Ahmad, C.S. Jeffery, 2004. A&A 413, 323


The evolution of helium-rich subdwarf-B stars
Ahmad, A., Jeffery, C. S., 2004. Ap&SS, 291, 253
Automatic Classification of Subdwarf Spectra using a Neural Network
Winter, C., Jeffery, C. S., Drilling, J. S., 2004. Ap&SS, 291, 375W
abstract | pdf | ps | ADS | poster
Colour and radial velocity variations in pulsating subluminous B stars
Jeffery, C. S., 2004. Ap&SS, 291, 403J
abstract | pdf | ps | ADS
Pulsation stability of helium-rich subdwarf B stars
Ahmad, A., Jeffery, C. S., Solheim, J.-E., Ĝstensen, R., 2004. Ap&SS, 291, 435A
abstract | pdf | ps | ADS | poster
Simulating colour variations in pulsating sdB stars
Ramachandran, B., Jeffery, C. S., 2004. Ap&SS, 291, 441R
abstract | pdf | ps | ADS | poster
MSST observations of the pulsating sdB star PG 1605+072
O'Toole, S. J., Falter, S., Heber, U., Jeffery, C. S., Dreizler, S., Schuh, S. L., The MSST + Wet Teams, 2004. Ap&SS, 291, 457O
abstract | pdf | ps | ADS
Multisite spectroscopic and photometric observations of the pulsating sdB star PG 1605+072
O'Toole, S. J., Falter, S., Heber, U., Jeffery, C. S., Dreizler, S., Schuh, S. L., The MSST + Wet Teams , 2004. ASPC, 310, 230O

2003

Spectral response of the pulsationally induced shock in the atmosphere of BW Vulpeculae
Smith, M.A., Jeffery C.S., 2003, MNRAS 341, 1141 - 1150
Physical parameters of helium-rich subdwarf B stars from medium resolution optical sepctroscopy
Ahmad, A., Jeffery C.S., 2003, A&A 402, 335

 
PG 1605+072 in WET XCov22: Support for the Multi Site Spectroscopic Telescope
Schuh, S. L., Heber, U., Dreizler, S., O'Toole, S., Jeffery, C. S., Falter, S., Woolf, V. M., Riddle, R. L., Handler, G., Hürkal, Ö., and 53 coauthors, 2003BaltA, 12, .55S
The progeny of binary white dwarf mergers
C.S. Jeffery, H.Saio, 2003. 13th European Workshop on White Dwarfs. NATO-ARW Workshop Ser. p.53
abstract | ps
Atmospheric analyses of helium-rich subdwarf B stars
A. Ahmad, C.S. Jeffery, V.M. Woolf, 2003. 13th European Workshop on White Dwarfs. NATO-ARW Workshop Ser. p. 93
abstract | poster | ps
Spectroscopic studies of the pulsating sdB binary PG1336-018
V.M.Woolf, C.S. Jeffery, D.Pollacco, 2003. 13th European Workshop on White Dwarfs. NATO-ARW Workshop Ser. p. 95
abstract | poster | ps
Physical Parameters for subdwarf B stars with composite spectra
R. Aznar Cuadrado, C.S. Jeffery, 2003. 13th European Workshop on White Dwarfs. NATO-ARW Workshop Ser. p. 91
abstract | poster | ps
Photometric and Spectroscopic monitoring of the sdBV star PG1605+072
U.Heber et al., 2003, 13th European Workshop on White Dwarfs. NATO-ARW Workshop Ser. p. 105
Automated Spectral Analysis
C.S. Jeffery 2003. Stellar Atmospheres Workshop, ASP Conf. Ser. 288, pp. 137 - 140
ps
Computational Astrophysics Tools for the GRID
C.S. Jeffery 2003. Stellar Atmospheres Workshop, ASP Conf. Ser. 288, pp. 141 - 144
ps
Helium white dwarf mergers as progeny for extreme helium stars
C.S.Jeffery, H.Saio, 2002, Stellar Collisions and Mergers, ASP Conf. Ser. 263, ed. M.Shara, pp. 239 - 251
abstract | ps

2002

Temperature and gravity of the pulsating extreme helium stars LSS 3184 (BX Cir) through its pulsation cycle.
V.M. Woolf, C. Simon Jeffery. A&A 395, 535-540
ps
Merged binary white dwarf evolution: rapidly accreting carbon-oxygen white dwarfs and the progeny of extreme helium stars
H.Saio, C.S.Jeffery, 2002. MNRAS 333, 121-132
abstract | ps.gz | pdf
Radial velocity study of the pulsating subdwarf B star and possible Type Ia supernova progenitor KPD 1930+2752
V.M.Woolf, C.S.Jeffery, D.L.Pollacco, 2002, MNRAS 332, 34-36
ps
Physical parameters for subdwarf B stars with composite spectra
R.Aznar Cuadrado, C.S.Jeffery, 2002, A&A 385, 131-132
ps
Non-linear radial pulsation models for the early-type helium stars V652 Her and BX Cir
P.Monatañes Rodriguez, C.S.Jeffery, 2002, A&A 384, 433-440
pdf
Radial velocity variations for the pulsating subdwarf B star PG1605+072
V.M.Woolf, C.S.Jeffery, D.L.Pollacco, 2002, MNRAS 329, 497-501
pdf

 
The strange story of BI Lyncis: an extremely helium-rich subdwarf with a cool companion
Jeffery C.S., Aznar Cuadrado R., 2002, ASP Conf Ser. 279, p p59 - 63
ps
V652 Her: evidence that white dwarf mergers really do happen
Jeffery C.S., 2002, ASP Conf. Ser. 279, pp 53 - 58
ps
FG Sagittae
Schoenberner D., Jeffery C.S., 2002, ASP Conf. Ser. 279, pp 173 - 186
ps
Exotic stars as challenges to evolution: an evaluation
Jeffery C.S., 2002, ASP Conf. Ser. 279, pp 389 - 394
ps
Non-linear radial pulsation models for the early-type helium stars V652 Her and BX Cir
P. Montañes Rodriguez, C.S.Jeffery, 2002."Radial and nonradial pulsations as probes of stellar physics (IAU Coll. 185), ASP Conf Ser. No. 259, eds. C.Aerts, T.Bedding, J.Christensen Dalsgaard, p. 438
Non-linear radial pulsations driven by strange modes in high-luminosity helium stars
P. Montañes Rodriguez, C.S.Jeffery, 2002."Radial and nonradial pulsations as probes of stellar physics (IAU Coll. 185), ASP Conf Ser. No. 259,eds. C.Aerts, T.Bedding, J.Christensen Dalsgaard, p. 436
poster
Radial velocity variations for the pulsating subdwarf B star PG1605+072
V.M.Woolf, C.S.Jeffery, D.L.Pollacco, 2002. "Radial and nonradial pulsations as probes of stellar physics" (IAU Coll. 185), ASP Conf Ser. No. 259, eds. C.Aerts, T.Bedding, J.Christensen Dalsgaard, p 376
Time-resolved spectral analysis of the pulsating helium star V652 Her
C.S.Jeffery, V.M.Woolf, D.L.Pollacco, 2002. "Radial and nonradial pulsations as probes of stellar physics" (IAU Coll. 185), ASP Conf Ser. No. 259, eds. C.Aerts, T.Bedding, J.Christensen Dalsgaard, p. 442
poster | ps
Optical spectroscopy of V4334 Sgr: 1996 - 2000
C.S.Jeffery, D.Pollacco, 2002, `Sakurai's Object' ed. A.Evans, Ast. Sp.Sci. 279, 15-30
ps
Secular contraction in helium stars and the future of V4334 Sgr
C.S.Jeffery, R.L.C.Starling, P.W.Hill, D.Pollacco, 2002, `Sakurai's Object' ed. A.Evans, Ast. Sp.Sci. 279, 115-122
ps

2001

BI Lyncis: a hydrogen-deficient binary consisting of two low-mass giants of spectral types early-B and G.
C.S.Jeffery, R.Aznar Cuadrado, 2001, A&A 378, 936
abstract | poster | ps
High-speed spectroscopy of non-radial pulsations in subluminous B stars
C.S.Jeffery, V.M.Woolf, D.Pollacco, 2002. First Galway workshop on High Time Resolution in Astrophysics -- publication cancelled
ps
Time-resolved spectral analysis of the pulsating helium star V652 Her
C.S.Jeffery, V.M.Woolf, D.L.Pollacco, 2001. A&A 376, 497
abstract | poster | ps
Projection effects in the spectra of early-type pulsating stars
P.Montañes Rodriguez, C.S.Jeffery, 2001, A&A 375, 411-418
ps
Variability in the extreme helium star LSS 5121
V.M.Woolf, R.Aznar Cuadrado, G.Pandey, C.S.Jeffery, 2001. A&A 371, 638
ps
Abundance analyses of cool extreme helium stars
G.Pandey, N.K.Rao, D.L.Lambert, C.S.Jeffery, M.Asplund, 2001, MNRAS 324, 937
pdf(note)
Physical parameters of sdB stars from spectral energy distributions
R.Aznar Cuadrado, C.S.Jeffery, 2001, A&A 368, 994
ps
Cyclic and Secular variation in the temperatures and radii of extreme helium stars
C.S.Jeffery, R.L.C.Starling, P.W.Hill, D.Pollacco, 2001. MNRAS 321, 111-130
abstract | pdf(note)


2000

Radial velocities of pulsating subdwarf B stars: KPD 2109+4401 and PB 8783
C.S.Jeffery, D.Pollacco, 2000. MNRAS 318, 974-982
337 - abstract | pdf (note)
Physical properties of the pulsating hydrogen-deficient star LSS 3184 (BX Cir)
V.M.Woolf, C.S.Jeffery, 2000. A&A 358, 1001
333 - abstract | ps
The evolution of a rapidly accreting helium white dwarf to become a low-luminosity helium star
H.Saio, C.S.Jeffery, 2000. MNRAS 313, 671
314 - abstract | ps

Evolutionary Constraints Imposed by Pulsations in Extreme Helium Stars
C.S.Jeffery, 2000. Proceedings of the Workshop on Binary and Variable Stars, 1999, Gunma Astronomical Observatory, p.32. ed.H.L.Malasan, O.Hashimoto, Y.Kozai (Gunma)
abstract | ps
Photometric variability of helium stars in the Z-bump instability strip
R. Aznar Cuadrado, P. Montañes Rodriguez, C.S. Jeffery, D. Pollacco, 2000. The Impact of Large Scale Surveys on Pulsating Star Research, ASP Conf Ser. Vol. 203, p.438, eds. L.Szabados, D.W. Kurtz
Z-bump pulsations in Helium Stars
C.S. Jeffery, H. Saio, 2000. The Impact of Large Scale Surveys on Pulsating Star Research, ASP Conf Ser. Vol. 203, p.440, eds. L.Szabados, D.W. Kurtz
The radial velocity projection factor in the pulsating helium star V652 Her
P. Montañes Rodriguez, C.S. Jeffery, R. Aznar Cuadrado, D. Pollacco, 2000. The Impact of Large Scale Survers on Pulsating Star Research, ASP Conf Ser. Vol. 203, p.441, eds. L.Szabados, D.W. Kurtz


2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994
Armagh Observatory Preprints

This page is maintained by:
Simon Jeffery (csj@star.arm.ac.uk)
Last modified:
16-Jul-2003
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