GSa SP-310 August 1990

EVOLUTION IN ASTROPHYSICS IUE astronomy in the era of new space missions

Proceedings of an International Conference held in Toulouse, France

29 May - 1 June 1990

Organised by European Space Agency (ESA) National Aeronautics and Space Administration (NASA) Science and Engineering Research Council (SERC) Centre National d'Etudes Spatiales (CNES)

Co-sponsored by Universite Paul Sabatier

UB/TIB Hannover 89 100 890 407 , „ ^ , „ ESA Conference Secretary |||||||||| I PIavpI F9A Vikna 111 III 1 U. wldVol, LOn Vllo{Jct HIHllfllllliliffl RN 2087(310) a Conference Editor E.J. Rolfe, ESA Publications Division

european space agency / agence spatiale europeenne

8 - 10 rue Mario-Nikis, 75738 Paris Cedex 15, France Ill

Contents

Opening address xiii Luton, J.M.

Opening address xv Wamskeker, W.

REVIEW PAPERS

Comparative study of cometology from IUE observations 3 Festou, M.C.

Pre- stars 11 Catala, C. & Bertout, C.

Herbig-Haro objects 23 Bohm, K.H.

Luminous hot variables 33 Wolf, B.

Abundances in chemically peculiar and normal A-type stars 39 Faraggiana, R. & Gerbaldi, M.

Chromospheres of cool stars 49 Harper, G.M.

Stellar activity cycles 61 Dravins, D.

Winds in cool stars 65 Baade, R.

What we learn from eclipsing binaries in the ultraviolet 73 Guinan, E.F.

Twelve in the life of symbiotic stars 87 Nussbaumer, H.

IUE observations of dwarf novae 95 Naylor, T.

The impact of IUE on studies of the Nova outburst: 1986-1990 101 Starrfield, S.

UV observations of X-ray binaries 109 Raymond, J.C. IV CONTENTS

Emission line nebulae in the Magellanic Clouds 117 Dufour, R.J.

The ultraviolet saga of SN 1987A 125 Gilmozzi, R.

Dynamics of the Interstellar Medium 133 Jenkins, E.B.

Are quasars different? 143 Carswell, R.F.

Experience with an heroic proposal: the NGC 5548 watch with IUE 147 Alloiri, D.

The UV properties of normal galaxies 153 Longo, G.

Star bursts and giant H II regions 159 Pagel, B.E.J.

ESA's 'Horizon 2000' Programme 167 Bonnet, R.M.

The astrophysics program at the National Aeronautics and Space Administration (NASA) 175 Pellerin, C.J.

The space research programme of Japan 183 Tanaka, Y.

The Extreme Ultraviolet Explorer 189 So wye/-, S. & Malina, R.F.

The Lyman Far-Ultraviolet Spectroscopic Explorer mission 199 Sonneborn, G.

IUE final archive 207 Nichols-Bohlin, J.

POSTER PAPERS

Session 1 Normal Stars & the Solar System

Interpretation of Comet Halley's Dust Continuum in the UV 217 Walk's, M.K. & Wickramasinghe, N.C.

IUE observations of Comet Okazawaki-Levy-Rudenko (1989r) 221 Wallis, M.K., Zamecki, J.C. & Deshpande, S.P.

Observations of Comet Brorsen-Metcalf and comparisons with Halley 223 Wallis, M.K., Hughes, D.W. & Williams, LP.

A search for Beta Pictoris analogs 227 Cheng, K.P., Grady, C,A. & Bruhweiler, F.C.

Multifrequency behaviour of the T-Tauri star RU Lupi 231 Giovannelli, F., Rossi, C, Errico, L, Vittone, A.A., Bisnovatyi-Kogan, G.S., Kurt, V.G., Sheffer, E.K. & Lamzin, S.A. CONTENTS V

Low-resolution ultraviolet spectra of Herbig Ae-Be stars 235 Hack, M. & Boehm, C.

Preliminary interpretation of the Mgll variability in L2 241 Brugel E.W., Willson, L.A. & Bowen, G.

Spectral classification of B Stars in the ultraviolet 247 Rountree, J. & Sonneborn, G.

A comparative study of B and Be stars in the UV: New evidence of a near-equatorial origin of the Si IV 1400 and C IV 1550 features in Be stars 251 Selvelli, P.L & Monai, S.

Atlas of far UV and optical spectra of Be stars 255 Doazan, V., Sedmak, G. & Barylak, M. & Rusconi, L.

Short-term FUV flux variability and phase-dependent winds in Be stars 257 Pefers, G.J., Percy, J,R., Henrichs, H.F., Gies, D.R. & McDavid, D.

The features at 130.55 and 130.95 nm in B stars 261 Caste///, F. & Singh, J.

Rotational and rapid flux variations of 21 Com in the ultraviolet 267 Megessier, C. & Monier, R.

The ultraviolet variations of 78 Vir 271 Monier, R.

Is the magnetic Ap star 21 Per an eclipsing binary? 273 Megessier, C. & Artru, M-C.

Nitrogen abundances in chemically peculiar stars 275 Lanz, T. & Artru, M-C.

Carbon and nitrogen abundances in HgMn stars 279 Smith, K.C. & Dworetsky, M.M.

The very high rotators in the late-B and early-A stars: shell stars with Si IV and C IV features 283 Freire Ferrero, R., Bruhweiler, F. & Grady, C.

The Lambda Boo stars 287 Faraggiana, R. & Gerbaldi, M.

New results on the UV variability of the WR stars HD 50896 and HD 92163 289 St-Louis, N., Willis, A.J., Smith, L.J., Garmany, CD. & Conti.P.S.

CNO abundance variations in type-l planetary nebulae 293 Dufour, R.J., Mulrooney, M.L. & Walter, D.K.

Implications on stellar structure/evolution of the observed association between energy/mass fluxes and multi- regional atmospheric structure 297 Doazan, V, & Thomas, R.N.

Continua of B supergiants in the LMC 303 Fitzpatrick, E.L.

On the disappearance of Ol in some high- cool stars 307 Carpenter, K.G., Norman, D., Robinson, R., Fernandez-Villacanas, J.L., Jordan, C. & Judge, P.

Possible very extended envelopes around red supergiants 311 Suso, J, Querci, F., Talavera, A., Querci, M. & Fabregat, J.

The chromospheric Lyman alpha core emission of Altair 315 Freire Ferrero, R„ Catalano, S„ Gouttebroze, P. & Marilli, E. VI CONTENTS

An IUE study of the chromospheres and transition regions of F giant stars 319 Drake, SA & Simon, T

The distant future of solar activity - A case study of Beta Hydn 323 T L J Dravins, D, Unde, P, Ayres, R, Fredga, K, Gahm, G, bndegren, , Linsky, L, Monsignon-Fossi, B, Nordlund, A, Simon, T, Vandenberg, D & Wallinder, F

A high-resolution atlas of Mg II profiles 325 £wa/d, R, & Nichols-Bohlm, J & Kondo, Y

The onset of cool stellar winds indicated by circumstellar Mg II absorption components 331 Hunsch, M

Chromospheric variation and phase relation in M giants 335 Johnson, H R, Eaton, J A & Cadmus, R R

Carbon and nitrogen abundances in the supergiants HD 93840 and Zeta Per 337 Massa, D, Altner, B, Wynne, D & Lamers, H J

The intrinsic H-l Lyman-Alpha line profiles of late-type stars 341 Neff, J E, Landsman, W B, Bookbinder, J A & Linsky, J L

Supergiant chromospheres and cool coronae at the transition from cool to hot circumstellar matter 345 Schroder, K -P

The long term monitoring of the spectrophotometnc IUE standard stars 349 P6rez, M R, Oliversen, N, Garhart, M & Teays, T

Accurate differential photometry using the Fine Error Sensor 349 Pike, CD & Wamsteker, W

Session 2 Clusters, Binary Systems & Compact Objects

The VV Cephei star KQ Puppis 359 Viotti, R, Rossi, C, Altamore, A, Baratta, G B, Fnedjung, M & Muratono, G

The ultraviolet spectrum of FG Sge 363 Montesmos B A R & T , Cassatella, , Gonzalez-Riestra, Fernandez-Castro,

Ultraviolet light curves of galactic and extra galactic classical CNO novae PW Vul, OS And, LMC 1988 nos 1 and 2 367 Austin, S, Starrfield, S, Saizar, P, Shore, SN & Sonneborn, G

The spectral energy distributions of stellar generations evolution and comparison with cluster spectra 371 Barbaro, G & Olivi, FM

Study of coronal and transition region structure in the contact binary 44i Boo through rotational modulation of the far UV spectra 375 B Barstow, M A , Bromage, G E & Holberg, J

Multifrequency behaviour of the X-ray/Be system A 0535 + 26/HDE 245770 at the penoastron passage in March/April 1989 379 de A M, Giovannelli, F, Persi, P, Martino, D, Bartolini, C, Guarnien, , Piccioni, A, Teoderam, M, Burger, van Dessel, EL, Kurt, VG, Sheffer, EK, Waters, LB,Gonzalez Martinez-Pais, I, Gnedin, YN, Lanonov, V M, Shakovskaya, NI, Dapergolas, A & Kontizas, E

Gas dynamics, accretion and evolution of Algols initial results for three representative systems 383 A E D G Gimenez, , Gonzalez-Riestra, R, Guinan, F, Kondo, Y, McCluskey, G E, Bradstreet, H, McCook, P, Dorren, J D, Johansson, S & Sahade, J CONTENTS vii

IUE observations of the RS CVn-type binary

Rayleigh scattering in symbiotic stars 393 Vogel, M.

Properties of the central star of NGC 6826 397 Heap, S., Altner, B., Hubeny, I. & Bohannan, B.

Correlated near-photospheric and stellar-wind variability in the 0 supergiant Lamda Cep 401 Henrichs, M., Gies, D., Kaper, L., Kudritzki, R., McDavid, D., Muschielok, B., Nichols-Bohlin, J., Voels, S. & Zwarthoed, G.

Variability and velocity fields in Alpha Ori atmosphere 407 Joras, P.

Orbital variability in the UV spectra of the massive X-ray binary HD 153919/4U1700-37 411 Kaper, L & Hammerschlag-Hensberge, G. & Takens, R.J.

A statistical analysis of IUE spectra of dwarf novae and nova-like stars 415 la Dous, C.

UV orbital variability in the intermediate polar H2215-086 419 De Martino, D., Mouchet, M., & Mukai, K.

Cataclysmic variables with anomalous UV emission line spectrum 423 Mouchet, M., Bonnet-Bidaud, J.M., Hameury, J.M. & Acker, A.

Ultraviolet continuum in solar and dMe star flares 427 Phillips, K.J.H., Bromage, G.E. & Doyle, J.G.

Long- and short-timescale variability of magnetic activity on the BY Dra star BD +26°730 431 Saar, S.H., Golub, L, Bopp, B., Herbst, W., & Huovelin, J.

PW Vul: A classical nova with nearly solar abundances 435 Saizar, P., Starrfield, S., Austin, G., Ferland, G„ Wagner, R.M., Truran, J.W., Sonneborn, G., Kenyon, S.J., Sparks, W.M., Williams, R.E., Wade, R. & Gehrz, R.D.

Nova LMC 1990 No. 1: The first extragalactic neon nova 439 Sonneborn, G., Shore, S.N. & Starrfield, S.G

Nova LMC 1990 No. 2: The first extragalactic recurrent nova 443 Shore, S.N., Sonneborn, G., Starrfield, S., Williams, R.E, Cassatella, A. & Drechsel, H.

IUE observations of galactic and extragalactic recurrent novae 447 Shore, S.N., Sonneborn, G. & Starrfield, S.

Late stages in the evolution of classical novae 451 Starrfield, S., Krautter, J., Sonneborn, G., Shore, S.N., Wagner, R.M., Austin, S., Saizar, P., Ferland, G Wade, R., Gehrz, R.D., Truran, J.W., Sparks, W.M., Shaviv, G„ & Williams, R.E

The 1987 outburst of the recurrent nova V394 Coronae Austrinae 457 Snijders, M.A.J., Sekiguchi, K., & Cassatella, A.

Model atmospheres for the early stages of novae in outburst 461 Wehrse, R.,Hauschildt, P.H., Shaviv, G. & Starrfield, S.

The CI pressure shift and gravitational redshift of the cool DBQA5 White Dwarf LDS678A 467 Sion, E.M., Vauclair, G., Oswalt, T.D., Hammond, G., Liebert, J., Koester, D., Wegner, G. & Marcum, P.

Ultraviolet, visual and infrared studies of galactic extreme emission line objects with very large IR excess 471 Winter, D. de, Perez, M.R. & Hu, J.Y. & Th&, P.S. Vlll CONTENTS

Hydrodynamic modelling of Be-bmanes and its applications 475 Wonnacott, D

Ultraviolet observations of X-ray transients 477 Shrader, C R

Narrow circumstellar emission lines in SN 1987A 479 Sonneborn, G, Cassatella, A, Wamsteker, W, Fransson, C, Kirshner, R, Gilmozzi, R & Panagia, N

Improved Monte Carlo models for the early time spectrum of SN 1987 A 483 Mazzali, PA & Lucy, L B

Session 3 Interstellar Medium, Active Galaxies & Space Astronomy

IUE, optical and radio observations of high-velocity gas components in the nearby interstellar medium 489 Gilheany, S, Bates, B, Catney, G, Keenan, FP & Davies, R D

Diffuse absorption bands in Orion A correlation with the UV reddening curve? 495 Porceddu, I & Benvenuti, P

The helium-strong stars of the Orton OB1 Association 501 Shore, S N

Galactic survey of interstellar abundances and selective extinction with IUE and IRAS 505 Van Steenberg, ME & Shull, JM

An estimation of temperatures of HI zone in BLR of Seyfert 1 galaxy IZW1 509 Cheng, FH, You, JH & Wang, TG

PKS 2152-69 a misdirected blazar 513 Fosbury, RAE, di Serego Alighien, S, Courvoisier, T J-L, Snijders, M A J, Tadhunter, C N, Walsh, J & Wilson, W

The ultraviolet atlas of quasar and blazar spectra 517 A L R JC & D G Kinney, , Bohlin, C, Blades, York,

The missing UV absorption lines of NGC 4151 523 Leech, KJ, Penston, M V, Snijders, MAJ, Ward, MJ& Gull, TR

C IV line profile correlations in NGC 4151 527 Michalitsianos, A G, Fahey, R P & Kazanas, D M

The ultraviolet variability of 4C37 43 (QS01512 + 37) 531 O'Brien, PT & Gondhalekar, PM

IUE and Einstein observations of the Liner galaxy NGC 4579 535 G A EM & K 0 Reichert, , Puchnarewicz, Mason,

Multiwavelength monitoring of the Seyfert I galaxy NGC 4593 539 Santos-Ueo, M, Clavel, J, Ban, P & Glass, IS

UV-X-ray relations and the Baldwin effect 545 Schultz, H

Orientation effects in the X-ray emission from radio-loud quasars 549 Shastn, P

Orientation effects in the optical-ultraviolet emission from radio loud quasars 553 Shastn, P & Kapahi, VK CONTENTS IX

Optical, near-infrared and ultraviolet monitoring of the Seyfert 1 galaxy Markarian 335 557 Shrader, C.R., Sun, W.-H., Turner, T.J. & Hintzen, P.M.

Accretion disk emission from a BL Lacertae object 561 Urry, CM. & Wandel, A.

the Mapping BLR: Line profile variability in Fairall-9 565 Wamsteker, W, Recondo Gonzalez M.C., Cheng, F. & Clavel, J. Optical and UV emission-line profiles in 3C390.3 571 Zheng, W

Scientific highlights of the Orfeus 1m EUV/FUV telescope 573 Kappelmann, N„ Barnstedt, J., Eberhard, N., Grewing, M., Gringel, W., Haas, C, Kaelble, A., Kramer, G., Petrik, J., Appenzeller, I., Krautter, J., Mandel, H., Ostreicher.R., Hurwitz, M. & Bowyer, S.

Session 4 Normal Galaxies, Image Processing & Archives

UV properties of hot stars in NGC 6752 579 Altner, B

Recent IUE observations of early-type galaxies 583 Bertola, F., Buson, L.M. & Burstein, D.

Multiwavelength studies of southern early-type galaxies 587 Danks, A.C. & Perez, M.R.

IUE observations of interacting starburst galaxies 591 Lamb, S.A., Bushouse, H.A. & Towns, J.W.

Science observations with IUE using the one-gyro mode 595 Imhoff, C, Pitts, R., Arquilla, R., Shrader, C, P6rez, M. & Webb, J.

Classification of IUE low-dispersion stellar spectra 597 Imadache, A. & Creze, M.

Homogenising the object nomenclature in the IUE log of observations 601 Jasniewicz, G., Egret, D, Barylak, M. & Wamsteker, W.

Enhancing IUE spectrophotometry: a case study of Beta Hydri 605 Linde, P. & Dravins, D.

The USSP/ULDA project 609 Murray, J., Driessen, C. & Talavera, A.

De-archiving IUE LBL images from optical disk 611 Pasian, F., Barylak, M. & Benvenuti, P.

NSSDC - Preserving time with technological advances 613 Perry, CM.

The archival reprocessing of IUE data: I. An accurate registration technique for distorted images 617 De La Pena, M.D., Shaw, R.A., Linde, P. & Dravins, D.

The archival reprocessing of IUE data: II. A new photometric correction technique for the IUE final archive 621 Shaw, R.A.

The archival reprocessing of IUE data: III. Results of the new processing method for IUE data 623 Nichols-Bohlin, J., De La Pena, M.D. & Shaw, R.A. CONTENTS X

constants for The archival reprocessing of IUE data: IV. A revised parameterization of the dispersion 627 high-dispersion IUE images Smith, M.A.

to remove interorder background in The archival reprocessing of IUE data: V. A new approach 631 high-dispersion IUE images Smith, M.A.

637 List of participants