Gav's publications

Gav's publications


Referred Journals


Reddening-distances for late-type stars from broad band BVI CCD imaging
Pollacco, D. L. & Ramsay, G., 1992, MNRAS, 254, 228

CCD observations in 7 open clusters: NGC2421, NGC2439, NGC2489, NGC2567, NGC2627, NGC2658 and NGC2910
Ramsay, G. & Pollacco, D. L., 1992, AAS, 94, 74

ROSAT observations of UZ For: Evidence of a structured X-ray emission region
Ramsay, G., Rosen, S. R., Mason, K. O., Cropper, M. S. & Watson, M. G., 1993, MNRAS, 262, 993

ROSAT observations of AN UMa and MR Ser; the status of the soft X-ray excess in AM Her stars
Ramsay, G., Mason, K. O., Cropper, M. S., Watson, M. G. & Clayton, K. L., 1994, MNRAS, 270, 692

ROSAT and Ginga observations of the magnetic CV QQ Vul: evidence for two-pole accretion
Beardmore, A. P., Ramsay, G., Osborne, J. P., Mason, K. O., Nousek, J. A. & Baluta, C., 1995, MNRAS, 273, 742

ROSAT observations of AM Her stars in low or intermediate states
Ramsay, G., Cropper, M. & Mason, K. O., 1995, MNRAS, 276, 1382

A search for spectral variations in ROSAT observations of AM Her, VV Pup, BL Hyi and UZ For
Ramsay, G., Cropper, M. & Mason, K. O., 1996, MNRAS, 278, 285

Optical polarisation and X-ray data on the AM Her star RE1844-74
Ramsay, G., Cropper, M., Wu, K. & Potter, S., 1996, MNRAS, 282, 726

Magnetic pumping in the CV AE Aqr
Kuijpers, J., Fletcher, L., Abada-Simon, M., Horne, K. D., Raadu, M. A., Ramsay, G. & Steeghs, D., 1997, A&A, 322, 242

ROSAT observations of the magnetic CV V2301 Oph (1H1752+081)
Ramsay, G., 1997, MNRAS, 290, 99

Simultaneous EUVE and optical observations of the magnetic CV PQ Gem
Howell, S. B., Sirk, M., Ramsay, G., Cropper, M., Potter, S. & Rosen, S. R., 1997, ApJ, 485, 333

RX J 1914.4+2456: the first double degenerate polar?
Cropper, M., Harrop-Allin, M. K., Mason, K. O., Mittaz, J. P. D., Potter, S. B., Ramsay, G., 1998, 293, L57, MNRAS

White Dwarf masses in magnetic CVs: multi-temperature fits to Ginga data
Cropper, M., Ramsay, G. & Wu, K., 1998, MNRAS, 293, 222

RX J0744-52: A probable new Intermediate Polar
Ramsay, G., Buckley, D. A. H., Cropper, M., 1998, MNRAS, 294, 187

Evidence for pole switching in the magnetic CV BY Camelopardalis
Mason, P. A., Ramsay, G., Andronov, I., Kolesnikov, S., Shakhovskoy, N., Pavlenko, E., 1998, MNRAS, 295, 511

A comparison of two white dwarf mass estimators using the Intermediate Polar XY Ari
Ramsay, G., Cropper, M., Hellier, C. & K. Wu, 1998, MNRAS, 297, 1269

The new Intermediate Polar RX J1238-38: a system below the period gap
Buckley, D. A. H., Cropper, M., Ramsay, G., Wickramasinghe, D. T., 1998, 299, 83, MNRAS

Spectroscopic observations of the eclipsing polar MN Hya (RX J0929-24)
Ramsay, G., Wheatley, P. J., 1998, MNRAS, 301, 95

RX J2115-5840: confirmation of a new near-synchronous Polar
Ramsay, G., Buckley, D. A. H., Cropper, M., Harrop-Allin, M. K., 1999, MNRAS, 303, 96

Effects of Gravity on the Structure of Postshock Accretion Flows in Magnetic Cataclysmic Variables
Mark Cropper, Kinwah Wu, Gavin Ramsay, Aysegul Kocabiyik, 1999, MNRAS, 306, 684

Simultaneous optical polarimetry and X-ray observations of the magnetic CV CP Tuc (AX J2315-592)
Gavin Ramsay, Stephen Potter, David Buckley, Peter Wheatley, 1999, MNRAS, 306, 809

Detection of the optical counterpart of the proposed double degenerate polar RX J1914+24
Ramsay, G., Cropper, M., Wu, K., Mason, K., Hakala, P., 2000, MNRAS, 311, 75

Evidence for a substellar secondary in the magnetic CV binary EF Eridani
Beuermann, K., Wheatley, P. J., Ramsay, G., Euchner, F., Gansicke, B. T., 2000, A&A, 354, L49

Determining the mass of the accreting white dwarf in magnetic CVs using RXTE data
Ramsay, G., 2000, MNRAS, 314, 403

Simultaneous optical polarimetry and X-ray data of the near synchronous polar RX J2115-5840
Ramsay, G., Potter, S. B., Cropper, M., Buckley, D. A. H., Harrop-Allin, M. K., 2000, MNRAS, 316, 225

First XMM-Newton observations of a cataclysmic variable I: Timing studies of OY Car
Ramsay, G., Poole, T., Mason, K., Cordova, F., Priedhorsky, W., Breeveld, A., Much, R., Osborne, J., Pandel, D., Potter, S., West, J., Wheatley, P., 2001, A&A, 365, L288

First XMM-Newton observations of a cataclysmic variable II: the X-ray spectrum of OY Car
Ramsay, G., Cordova, F., Cottam, J., Mason, K., Much, R., Osborne, J., Pandel, D., Poole, T., Wheatley, P., 2001, A&A, 365, L294

First XMM-Newton observations of an isolated neutron star: RX J0720.4-3125
Paerels, F., Mori, K., Motch, C., Haberl, F., Zavlin, V. E., Zane, S., Ramsay, G., Cropper, M., Brinkman, B., 2001, A&A, 365, L298

Modelling the spin pulse profile of the isolated neutron star RX J0720.4-3125 observed using XMM-Newton
Cropper, M., Zane, S., Ramsay, G., Haberl, F., Motch, C., 2001, A&A, 365, L302

On the multi-periodicities in the X-ray dipper XB 1916-053
Homer, L., Charles, P. A., Hakala, P., Muhli, P., Shih, I-C., Smale, A. P., Ramsay, G., 2001, MNRAS, 322, 827

High-speed energy-resolved STJ photometry of the eclipsing polar UZ For
Perryman, M. A. C., Cropper, M., Ramsay, G., Favata, F., Peacock, A., Rando, N., Reynolds, A., 2001, MNRAS, 324, 899

First XMM-Newton observations of strongly magnetic cataclysmic variables I: spectral studies of DP Leo and WW Hor
Ramsay, G., Cropper, M., Cordova, F., Mason, K., Much, R., Pandel, D., Shirey, R., 2001, MNRAS, 326, L27

Ionisation structure in accretion shocks with a composite cooling function
Wu, K., Cropper, M., Ramsay, G., 2001, MNRAS, 327, 208

An electrically powered binary star?
Wu, K., Cropper, M., Ramsay, G., Sekiguchi, K., 2002, MNRAS, 331, 221

Indirect imaging of the accretion stream in eclipsing polars IV: V895 Cen
Salvi, N., Ramsay, G., Cropper, M., Buckley, D., Stobie, R. S., 2002, MNRAS, 331, 488

RX J0806+15: the shortest period binary?
Ramsay, G., Hakala, P., Cropper, M., 2002, MNRAS, 332, L7

First XMM-Newton observations of strongly magnetic cataclysmic variables II: timing studies of DP Leo and WW Hor
Pandel, D., Cordova, F., Shirey, R., Ramsay, G., Cropper, M., Mason, K., Much, R., Kilkenny, D., 2002, MNRAS, 332, 116

Optical/Infrared spectroscopy and photometry of the short period binary RX J1914+24
Ramsay, G., Wu, K., Cropper, Schmidt, G., Sekiguchi, K., Iwamuro, F., Maihara, T., 2002, MNRAS, 333, 575

XMM-Newton observations of the asynchronous polar BY Cam
Ramsay, G., Cropper, M., 2002, MNRAS, 334, 805

3D eclipse mapping in AM Her systems - `Genetically modified fireflies'
Hakala, P., Cropper, M., Ramsay, G., 2002, MNRAS, 334, 990

First X-ray observations of the polar CE Gru
Ramsay, G., Cropper, M., 2002, MNRAS, 335, 918

X-ray spectroscopy of the IP PQ Gem
James, C. H., Ramsay, G., Cropper, M., Branduardi-Raymont, G., 2002, MNRAS, 336, 550

High resolution spectroscopy of Her X-1 with the XMM-Newton RGS
Jimenez-Garate, M. A., Hailey, C. J., den Herder, J.-W., Zane, S., Ramsay, G., 2002, ApJ, 578, 391

STJ observations of the eclipsing polar HU Aqr
Bridge, C., Cropper, M., Ramsay, G., Perryman, M. A. C., de Bruijne, J. H. J., Favata, F., Peacock, A., Rando, N., Reynolds, A. P., 2002, MNRAS, 336, 1229

XMM-Newton EPIC observations of Her X-1
Ramsay, G., Zane, S., Jimenez-Garate, M. A., den Herder, J.-W., Hailey, C. J., 2002, MNRAS, 337, 1185

XMM-Newton observations of the polars EV UMa, RX J1002-19 and RX J1007-20
Ramsay, G., Cropper, M., 2003, MNRAS, 338, 219

X-ray spectroscopy of eta Car with XMM-Newton
Leutenegger, M., Kahn, S. M., Ramsay, G., 2003, ApJ, 585, 1015

UBVRI photopolarimetry of the long period eclipsing AM Herculis binary V1309
Katajainen, S., Piirola, V., Ramsay, G., Scaltriti, F., Lehto, H. J., Cropper, M., Harrop-Allin, M. K., Anderlucci, E., Hakala, P., 2003, MNRAS, 340, 1

The Component Star Masses in RW Tri
Poole, T., Mason, K. O., Ramsay, G., Drew, J. E., Smith, R. C., 2003, MNRAS, 340, 499

Variability of the accretion stream in the eclipsing polar EP Dra
Bridge, C. M., Cropper, M., Ramsay, G., de Bruijne, J. H., Reynolds, A. P., Perryman, M. A. C., 2003, MNRAS, 341, 863

A search for X-ray variability in the open cluster NGC 2516
Ramsay, G., Harra, L., Kay, H., 2003, MNRAS, 341, 1388

Spin up in RX J0806+15: the shortest period binary
Hakala, P., Ramsay, G., Wu, K., Hjalmarsdotter, L., Järvinen, S., Järvinen, A., Cropper, M. 2003, MNRAS, 343, L10

The obscured QSO 1SAX J1218.9+2958
Loaring, N., Page, M., Ramsay, G., 2003, MNRAS, 345, 865

XMM-Newton observations of three short period polars: V347 Pav, GG Leo and EU UMa
Ramsay, G., Cropper, M., Mason, K., Cordova, F., Priedhorsky, W., 2004, MNRAS, 347, 95

The energy balance of polars revisited
Ramsay, G., Cropper, M., 2004, MNRAS, 347, 497

XMM-Newton observations of OY Car III: OM light curve modelling, X-ray timing and spectral studies
Hakala, P., Ramsay, G., 2004, A&A, 416, 1047

Twisted accretion curtains in the intermediate polar FO Aqr
Evans, P. A., Hellier, C., Ramsay, G., Cropper, M., 2004, MNRAS, 349, 715

XMM-Newton EPIC & OM observations of Her X-1 over the 35 day beat period
Zane, S., Ramsay, G., Jimenez-Garate, M. A., den Herder, J. W., Hailey, C. J., 2004, MNRAS, 350, 506

XMM-Newton observations of polars in low accretion states
Ramsay, G., Cropper, M., Wu, K., Mason, K., Cordova, F., Priedhorsky, W., 2004, MNRAS, 350, 1373

XMM-Newton observations of the dwarf nova YZ Cnc in quiescence
Hakala, P., RAMSAY, G., Wheatley, P., Harlaftis, E., Papadimitriou, C., 2004, A&A, 420, 273

Accretion stream mapping with genetically modified `fire-flies'
Bridge, C. M., Hakala, P., Cropper, M., Ramsay, G., 2004, MNRAS, 351, 1423

Monitoring the spin up in RX J0806+15
Hakala, P., Ramsay, G., Byckling, K., 2004, MNRAS, 353, 435

XMM-Newton observations of the eclipsing polar EP Dra
Ramsay, G., Bridge, C. M., Cropper, C., Mason, K. O., Cordova, F. A., Priedhorsky, W., 2004, MNRAS, 354, 773

First observations of Jupiter by XMM-Newton
Branduardi-Raymont, G., Elsner, R. F., Gladstone, G. R., Ramsay, G., Rodriguez, P., Soria, R., Waite, J. H., 2004, A&A, 424, 331

Properties of serendipitous X-ray flares discovered in XMM-Newton observations
Trenholme, D., Ramsay, G., Foley, C., 2004, MNRAS, 355, 1125


Other Publications


Reddening-distances for PN from broad band BVI CCD imaging
Pollacco, D. L. & Ramsay, G., 1993, In IAU Symp 155, 180, Eds Weinberger, R. & Acker, A., Kluwer, 1993

UZ For: A new ephemeris for UZ For
Ramsay, G., 1994, IBVS, 4075

Circular Polarimetric observations of the magnetic CV 1H1752+081
Ramsay, G. & Cropper, M., 1994, IBVS, 4100

Observations of AM Her stars using ROSAT
Ramsay, G., Mason, K. O. & Cropper, M., Adv. Space Res., 1995, 16, No.3, 103

Polarisation observations of RE1844-74
Ramsay, G., Cropper, M. & Wu, K., 1995, In Cape Workshop on MCVs, ASP Conf series, p.338, Eds Buckley, D. & Warner, B

X-ray and optical observations of BY Cam
Ramsay, G. & Mason, P. A., 1996, In CVs and related objects, eds A. Evans & J. Woods, Kluwer Academic Publishers, p213

Triggering the radio emission from AE Aquarii
Steeghs, D., Abada-Simon, M., Fletcher, L., Horne, K., Kuijpers, J., & Ramsay, G., 1996, In CVs and related objects, eds A. Evans & J. Woods, Kluwer Academic Publishers, p167

Short term variations in the hard X-ray light curve of AM Her
Ramsay, G., 1996, In Proc 3rd Pacific Rim meeting on recent developments in Binary Star Research, p285

A search for short term spectral variations in the hard X-ray light curve of AM Her
Ramsay, G., 1996, In Proc 3rd Anniv. of ASCA Symp, p577

Determining the masses of white dwarfs in magnetic cataclysmic variables from x-ray observations
Wu, K., Cropper, M., Ramsay, G., 1997, In IAU Symp 189: Fundamental Stellar Properties: the interaction between observations and theory, eds Bedding, T. R., Booth, A. J., Davis, J., 1997, 115

White dwarf masses in magnetic CVs: Multi-temperature fits to Ginga data
Cropper, M., Ramsay, G., Wu, K., 1997, In Accretion Phenomena and related outflows, 1997, ASP Conf Series, 121, 413

Simultaneous optical and EUVE observations of the IP PQ Gem
Ramsay, G., Howell, G., Sirk, M., Cropper, M., Potter, S. & Rosen, S., In Accretion Phenomena and related outflows, 1997, ASP Conf Series, 121, 413

Phase-resolved spectroscopy of the eclipsing AM Her system RX0929-24
Ramsay, G., Wheatley, P., In 13th N American Workshop on CVs and LMXBs, ASP Conf Series, Vol 137, p.521

EF Eri in a low accretion state
Wheatley, P., Ramsay, G., In 13th N American Workshop on CVs and LMXBs, , ASP Conf Series, Vol 137, p.446

RX J2115-5840: confirmation of a new near-synchronous Polar
Ramsay, G., Buckley, D., Cropper, M., Harrop-Allin, M. K., In Annapolis workshop on magnetic CVs, in press

The optical counterpart of the double degenerate Polar RX J1914+24
Ramsay, G., Cropper, M., Mason, K., Hakala, P., In Annapolis workshop on magnetic CVs, in press

On the nature of the new below-gap Intermediate Polar RX J1238-38
Buckley, D., Cropper, M., Ramsay, G., Wickramasinghe, D., Hellier, C., Beardmore, A., In Annapolis workshop on magnetic CVs, in press

Continuum and line emission in post-shock flows
Cropper, M., Wu, K., Ramsay, G., In Annapolis workshop on magnetic CVs, in press

The Emission from Post-Shock Flows in mCVs
Cropper, M., Wu, K., Ramsay, G., 2000, In Proc of the Symposium to mark the 60th birthday of Brian Warner, New Astronomy Reviews, 44, 57

XMM-Newton EPIC observations of Her X-1
Ramsay, G., Zane, S., Jimenez-Garate, M. A., den Herder, J. W., Hailey, C. J., 2002, In Proc Symp. New Visions of the X-ray universe in the XMM-Newton and Chandra Era, ESA SP-488

X-ray line emission in Her X-1
Jimenez-Garate, M. A., Hailey, C. J., den Herder, J. W., Zane, S., Ramsay, G., 2002, In Proc Symp. New Visions of the X-ray universe in the XMM-Newton and Chandra Era, ESA SP-488

X-ray observations of accreting white-dwarf systems
Cropper, M., Ramsay, G., Hellier, C., Mukai, K., Mauche, C., Pandel, D., 2002, In Phil. Trans. R. Soc. Lond. A, 360, 1951

What is the mass ratio of the binary system RW Tri?
Poole, T., Mason, K. O., Ramsay, G., Drew, J. E., 2002, In The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261, 67

Genetically modified fireflies' -- 3D eclipse mapping for polars
Hakala, P. J., Cropper, M., Ramsay, G., 2002, In The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261, 153

Cyclotron emission from stratified accretion shocks in magnetic cataclysmic variables
Potter, S., Ramsay, G., Wu, K., Cropper, M., 2002, In The Physics of Cataclysmic Variables and Related Objects, ASP Conference Proceedings, Vol. 261, 165

Ultra-short period double degenerate binaries
Cropper, M., Ramsay, G., Wu, K., Hakala, P. J., in press, In Proc IAU 190: Magnetic Cataclymsic Variables

XMM-Newton-MSSL survey of polars
Ramsay, G., Cropper, M., in press, In Proc IAU 190: Magnetic Cataclymsic Variables

Stream eclipse mapping with 'fire-flies'
Bridge, C. M., Hakala, P., Cropper, M., Ramsay, G., in press, In Proc IAU 190: Magnetic Cataclymsic Variables


Last up-date: 5th Nov 2003