The causes of hot-star variability

The causes of hot-star variability

NCN project 2015/18/A/ST9/00578

 

Publications

In refereed journals:

HD 24355 observed by the Kepler K2 mission: a rapidly oscillating Ap star pulsating in a distorted quadrupole mode
D. L. Holdsworth, D. W. Kurtz, B. Smalley, H. Saio, G. Handler, S. J. Murphy, H. Lehmann, 2016, Monthly Notices of the Royal Astronomical Society 462, 876 - 892

The BRITE Constellation Nanosatellite Mission: Testing, Commissioning, and Operations
Pablo, H.; Whittaker, G. N.; Popowicz, A.; ... Handler, G.; ... Zoclonska, E.; et al. 2016, Publications of the Astronomical Society of the Pacific 128, 125001 - 125020

Combining BRITE and ground-based photometry for the Beta Cephei star Nu Eridani: impact on photometric pulsation mode identification and detection of several g modes
Handler, G.; Rybicka, M.; Popowicz, A.; Pigulski, A.; Kuschnig, R.; Zoclonska, E.; et al. 2017, Monthly Notices of the Royal Astronomical Society 464, 2249 - 2258

Search for exoplanets around pulsating stars of A-F type in Kepler Short Cadence data and the case of KIC 8197761
P. Sowicka, G. Handler, B. Debski, D. Jones, M. Van de Sande, P. I. Papics, 2017, Monthly Notices of the Royal Astronomical Society 467, 4663 - 4673

The Most Massive Heartbeat: An In-depth Analysis of Iota Orionis
H. Pablo, N. D. Richardson, J. Fuller, J. Rowe, A.F.J. Moffat, R. Kuschnig, A. Popowicz, G. Handler, et al. 2017, Monthly Notices of the Royal Astronomical Society 467, 2494 - 2503

Search for variables in six Galactic open clusters
Paunzen, E.; Handler, G.; Lendl, M. et al., 2017, New Astronomy 52, 133 - 139

The triple system HD 201433 with a slowly-pulsating B-star component seen by BRITE - Constellation: Pulsation properties, differential rotation, and angular momentum transfer
T. Kallinger, W. W. Weiss, P. G. Beck, ... G. Handler, et al. 2017, Astronomy & Astrophysics 603, A13, 1 - 21

Studying the photometric and spectroscopic variability of the magnetic hot supergiant Zeta Orionis Aa
B. Buysschaert, C. Neiner, N. D. Richardson, ... G. Handler,et al. 2017, Astronomy & Astrophysics 602, A91, 1 - 20

BRITE Constellation: data processing and photometry
Popowicz, A.; Pigulski, A.; Bernacki, K.; ... Zoclonska, E.; ... Handler, G. et al., 2017, Astronomy & Astrophysics 605, A26, 1 - 18

The variability of the BRITE-est Wolf-Rayet binary, Gamma2 Velorum-I. Photometric and spectroscopic evidence for colliding winds
Richardson, N. D.; Russell, C. M. P.; St-Jean, L.; ... Handler, G.; et al., 2017, Monthly Notices of the Royal Astronomical Society 471, 2715 - 2729

The planetary nebula IC 4776 and its post-common-envelope binary central star
Sowicka, P.; Jones, D.; Corradi, R. L. M.; et al., 2017, Monthly Notices of the Royal Astronomical Society 471, 3529 - 3546

Constraining the near-core rotation of the Gamma Doradus star 43 Cygni using BRITE-Constellation data
Zwintz, K.; Van Reeth, T.; Tkachenko, A.; Goessl, S.; Pigulski, A.; Kuschnig, R.; Handler, G.; et al, 2017, Astronomy & Astrophysics 608, A103, 1 - 9

Gravity Modes Reveal the Internal Rotation of a Post-mass-transfer Gamma Doradus/ Delta Scuti Hybrid Pulsator in Kepler Eclipsing Binary KIC 9592855
Z. Guo, D. R. Gies, R. A. Matson, 2017, The Astrophysical Journal 851, 39, 1 - 14

BRITE-Constellation high-precision time-dependent photometry of the early O-type supergiant Zeta Puppis unveils the photospheric drivers of its small- and large-scale wind structures
Ramiaramanantsoa, T.; Moffat, A. F. J.; Harmon, R.; ... Zoclonska, E.; ... Handler, G.; et al, 2018, Monthly Notices of the Royal Astronomical Society 473, 5532 - 5569

BRITE-Constellation reveals evidence for pulsations in the enigmatic binary Eta Carinae
Richardson, N. D.; Pablo, H.; Sterken, C.; ... Handler, G.; et al., 2018, Monthly Notices of the Royal Astronomical Society 475, 5417 - 5423

Short-term variability and mass loss in Be stars III. BRITE and SMEI satellite photometry of 28 Cygni
D. Baade, A. Pigulski, Th. Rivinius, A.C. Carciofi, D. Panoglou, M. Ghoreyshi, G. Handler, et al., 2018, Astronomy & Astrophysics 610, A70, 1 - 17

Light-curve Instabilities of Beta Lyrae Observed by the BRITE Satellites
S. M. Rucinski, A. Pigulski, A. Popowicz, ... G. Handler, et al. 2018, The Astronomical Journal 156, 1-13

On epsilon-mechanism-driven pulsations in VV 47
P. Sowicka, G. Handler, D. Jones, 2018, Monthly Notices of the Royal Astronomical Society 479, 2476 - 2480

A BRITE view on the massive O-type supergiant V973 Scorpii: hints towards internal gravity waves or sub-surface convection zones
T. Ramiaramanantsoa, R. Ratnasingam, T. Shenar, ... G. Handler, et al., 2018, Monthly Notices of the Royal Astronomical Society 480, 972 - 986

The search for roAp stars: null results and new candidates from Stroemgren-Crawford photometry
Paunzen, E., Handler, G., Honkova, K. et al. 2018, Research in Astronomy and Astrophysics 18, 135, 1-12

Short-term variability and mass loss in Be stars. IV. Two groups of closely spaced, approximately equidistant frequencies in three decades of space photometry of Nu Puppis (B7-8 IIIe)
Baade, D.; Pigulski, A.; Rivinius, Th.; Wang, L.; Martayan, Ch.; Handler, G.; et al., 2018, Astronomy & Astrophysics 620, A145 (1 - 16)

A study of pulsation & rotation in a sample of A-K type stars in the Kepler field
S. Chowdhury, S. Joshi, C. A. Engelbrecht, P. De Cat, Y. C. Joshi, K. T. Paul, 2018, Astrophysics & Space Science 363, 260 (1 - 18)

BRITE photometry of the massive post-RLOF system HD 149404
Rauw, G.; Pigulski, A.; Naze, Y.; David-Uraz, A.; Handler, G.; et al. 2019, Astronomy & Astrophysics 621, A15 (1 - 16)

Diverse Variability of O and B Stars Revealed from 2-minute Cadence Light Curves in Sectors 1 and 2 of the TESS Mission: Selection of an Asteroseismic Sample
Pedersen, M. G.; Chowdhury, S.; Johnston, C.; Bowman, D. M.; Aerts, C.; Handler, G.; et al., 2019, The Astrophysical Journal Letters 872, L9 (1 - 11)

Asteroseismology of Massive Stars with the TESS Mission: The Runaway β Cep Pulsator PHL 346 = HN Aqr
Handler, G.; Pigulski, A.; Daszynska-Daszkiewicz, J.; Irrgang, A.; Kilkenny, D.; Guo, Z.; Przybilla, N.; Kahraman Alicavus, F.; Kallinger, T.; Pascual-Granado, J.; Niemczura, E.; Rozanski, T.; Chowdhury, S.; et al., 2019, The Astrophysical Journal Letters 873, L4 (1 - 7)

The short orbital period binary star at the heart of the planetary nebula M 3-1
Jones, D.; Boffin, H. M. J.; Sowicka, P.; et al. 2019, Monthly Notices of the Royal Astronomical Society: Letters 482, L75 - L79

A revisit to the enigmatic variable star 21 Comae
Paunzen, E. Handler, G.; Walczak, P.; et al., 2019, Monthly Notices of the Royal Astronomical Society 485, 4247 - 4259

Stellar masses from granulation and oscillations of 23 bright red giants observed by BRITE-Constellation
Kallinger, T.; Beck, P. G.; Hekker, S.; ... Handler, G.; et al., 2019, Astronomy & Astrophysics 624, A35 (1 - 17)

Rotational modulation in TESS B stars
Balona, L. A.; Handler, G.; Chowdhury, S.; et al., 2019, Monthly Notices of the Royal Astronomical Society 485, 3457 - 3469

Seismic modelling of early B-type pulsators observed by BRITE - I. Theta Ophiuchi
Walczak, P.; Daszynska-Daszkiewicz, J.; Pigulski, A.; Pamyatnykh, A.; Moffat, A. F. J.; Handler, G.; et al. 2019, Monthly Notices of the Royal Astronomical Society 485, 3544 - 3557

Magnetic OB[A] Stars with TESS: probing their Evolutionary and Rotational properties (MOBSTER) - I. First-light observations of known magnetic B and A stars
David-Uraz, A.; Neiner, C.; Sikora, J.; Bowman, D. M.; Petit, V.; Chowdhury, S.; Handler, G.; et al., 2019, Monthly Notices of the Royal Astronomical Society 487, 304 - 317

Rotation and pulsation in Ap stars: first light results from TESS sectors 1 and 2
Cunha, M. S.; Antoci, V.; Holdsworth, D. L.; ... Guo, Z.; ... Handler, G.; et al. 2019, Monthly Notices of the Royal Astronomical Society 487, 3523 - 3549

Revisiting the pulsational characteristics of the exoplanet host star Beta Pictoris
Zwintz, K.; Reese, D. R.; Neiner, C.; ... Handler, G.; et al., 2019, Astronomy & Astrophysics 627, A28 (1 - 25)

MOBSTER - II. Identification of rotationally variable A stars observed with TESS in sectors 1-4
Sikora, J.; David-Uraz, A.; Chowdhury, S.; et al. 2019, Monthly Notices of the Royal Astronomical Society 487, 4695 - 4710

Epsilon Lupi: measuring the heartbeat of a doubly magnetic massive binary with BRITE Constellation
Pablo, H.; Shultz, M.; Fuller, J.; ... Handler, G.; et al. 2019, Monthly Notices of the Royal Astronomical Society 488, 64 - 77

Detailed spectroscopic and photometric study of three detached eclipsing binaries
Kahraman Alicavus, F.; Alicavus, F., 2019, Monthly Notices of the Royal Astronomical Society 488, 5279 - 5289

Photometric and spectroscopic investigation of nine Cepheids in the Cassiopeia constellation
Zak, J.; Skarka, M.; Paunzen, E.; Dubovsky, P.; Zejda, M.; Handler, G., 2019, Contributions of the Astronomical Observatory Skalnate Pleso 49, 503 - 521

The first view of Delta Scuti and Gamma Doradus stars with the TESS mission
Antoci, V.; Cunha, M. S.; Bowman, D. M.; ... Kahraman Alicavus, F.; ... Chowdhury, S.; ... Guo, Z.; ... Sowicka, P.; et al. 2019, Monthly Notices of the Royal Astronomical Society 490, 4040

The chaotic wind of WR 40 as probed by BRITE
Ramiaramanantsoa, T.; Ignace, R.; Moffat, A. F. J.; Handler, G.; et al. 2019, Monthly Notices of the Royal Astronomical Society 490, 5921 - 5930

Evolving pulsation of the slowly rotating magnetic Beta Cep star Xi1 CMa
Wade, G. A.; Pigulski, A.; Begy, S.; Shultz, M.; Handler, G., et al. 2020, Monthly Notices of the Royal Astronomical Society 492, 2762 - 2774

Short-term variability and mass loss in Be stars. V. Space photometry and ground-based spectroscopy of Gamma Cas
Borre, C. C.; Baade, D.; Pigulski, A.; Panoglou, D.; Weiss, A.; Rivinius, Th.; Handler, G.; et al., 2020, Astronomy & Astrophysics 635, A140, 1-12

Tidally trapped pulsations in a close binary star system discovered by TESS
Handler, G.; Kurtz, D. W.; Rappaport, S. A.; ... Guo, Z.; Chowdhury, S.; Sowicka, P.; Kahraman Alicavus, F.; et al. 2020, Nature Astronomy 4, 684 - 689

Physics of Eclipsing Binaries. IV. The Impact of Interstellar Extinction on the Light Curves of Eclipsing Binaries
Jones, D.; Conroy, K. E.; Horvat, M.; ... Sowicka, P.; Prsa, A., 2020, The Astrophysical Journal Supplement Series 247, 63, 1 - 8

Spectroscopy of hot Gamma Doradus and A-F hybrid Kepler candidates close to the hot border of the Delta Scuti instability strip
Kahraman Alicavus, F.; Poretti, E.; Catanzaro, G.; ... Handler, G., 2020, Monthly Notices of the Royal Astronomical Society 493, 4518 - 4532

Direct evidence for shock-powered optical emission in a nova
Aydi, E.; Sokolovsky, K. V.; Chomiuk, L.; ... Handler, G., et al., 2020, Nature Astronomy 4, 776 - 780

TESS first look at evolved compact pulsators. Known ZZ Ceti stars of the southern ecliptic hemisphere as seen by TESS
Bognar, Zs.; Kawaler, S. D.; Bell, K. J.; ... Handler, G.; et al. 2020, Astronomy & Astrophysics 638, A82, 1 - 20

The single-sided pulsator CO Camelopardalis
Kurtz, D. W.; Handler, G.; Rappaport, S. A.; ... Kahraman Alicavus, F.; Giarrusso, M., 2020, Monthly Notices of the Royal Astronomical Society 494, 5118 - 5133

TESS photometry of extreme helium stars PV Tel and V821 Cen
Jeffery, C. S.; Barentsen, G.; Handler, G., 2020, Monthly Notices of the Royal Astronomical Society Letters 495, L135 - L138

New Beta Cephei Stars from the KELT Project
Labadie-Bartz, J.; Handler, G.; Pepper, J.; et al. 2020, The Astronomical Journal 160, id. 32, 1 - 22

BRITE-Constellation photometry of Pi5 Orionis, an ellipsoidal SPB variable
Jerzykiewicz, M.; Pigulski, A.; Handler, G.; et al., 2020, Monthly Notices of the Royal Astronomical Society 496, 2391 - 2401

The evolutionary status of chemically peculiar eclipsing binary star DV Boo
Kahraman Alicavus, F.; Alicavus, F., 2020, Research in Astronomy and Astrophysics 20, id. 150, 1 - 10

New BRITE-Constellation observations of the roAp star Alpha Cir
Weiss, W. W.; Froehlich, H. -E.; Kallinger, T.; ... Handler, G.; et al. 2020, Astronomy & Astrophysics 642, A64, 1 - 11

The post-common-envelope binary central star of the planetary nebula PN G283.7-05.1. A possible post-red-giant-branch planetary nebula central star
Jones, D.; Boffin, H. M. J.; Hibbert, J.; ... Sowicka, P.; et al. 2020, Astronomy & Astrophysics 642, A108, 1 - 9

A Search for Pulsation in Twenty-One White Dwarfs
Paunzen, E.; Handler, G.; Janik, J.; et al. 2020, Revista Mexicana de Astronomia y Astrofisica 56, 193 - 199

Tidally trapped pulsations in binary stars
Fuller, J.; Kurtz, D. W.; Handler, G.; Rappaport, S., 2020, Monthly Notices of the Royal Astronomical Society 498, 5730 - 5744

The post-common-envelope binary central star of the planetary nebula ETHOS 1
Munday, J.; Jones, D.; Garcia-Rojas, J.; ... Sowicka, P., 2020, Monthly Notices of the Royal Astronomical Society 498, 6005 - 6012

BRITE photometry and STELLA spectroscopy of bright stars in Auriga: Rotation, pulsation, orbits, and eclipses
Strassmeier, K. G.; Granzer, T.; Weber, M.; ... Handler, G., 2020, Astronomy & Astrophysics 644, A104, 1 - 20

Asteroseismology of SZ Lyn using multiband high time resolution photometry from ground and space
Adassuriya, J.; Ganesh, S., Gutierrez, J. L.; Handler, G. et al. 2021, Monthly Notices of the Royal Astronomical Society 502, 541-555

A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020
Rappaport, S. A.; Kurtz, D. W.; Handler, G.; ... Kahraman Alicavus, F., 2021, Monthly Notices of the Royal Astronomical Society 503, 254

BRITE observations of Nu Centauri and Gamma Lupi, the first non-eclipsing members of the new class of nascent binaries
Jerzykiewicz, M.; Pigulski, A.; Michalska, G.; Mozdzierski, D.; Ratajczak, M.; Handler, G. et al. 2021, Monthly Notices of the Royal Astronomical Society 503, 5554

Mode identification and seismic study of Delta Scuti, the prototype of a class of pulsating stars
Daszynska-Daszkiewicz, J.; Pamyatnykh, A. A.; Walczak, P.; Handler, G.; Pigulski, A.; Szewczuk, W., 2021, Monthly Notices of the Royal Astronomical Society 505, 88

Space Photometry with Brite-Constellation
Weiss, W. W.; Zwintz, K.; Kuschnig, R.; Handler, G. et al. 2021, Universe 7, 199, 1 - 32

The Missing Link? Discovery of Pulsations in the Nitrogen-rich PG 1159 Star PG 1144+005
Sowicka, P.; Handler, G.; Jones, D.; van Wyk, F., 2021, The Astrophysical Journal Letters 918, L1

Discovery of multiple p-mode pulsation frequencies in the roAp star, HD 86181
Shi, F.; Kurtz, D. W.; Holdsworth, D. L.; ... Handler, G. , 2021, Monthly Notices of the Royal Astronomical Society 506, 5629

A Study of the Stochastic Photometric Variability in the Winds of Galactic Wolf-Rayet Stars
Lenoir-Craig, G.; St-Louis, N.; Moffat, A. F. J.; Pablo, H.; Handler, G. et al., 2022, The Astrophysical Journal 925, 79, 1-16

5 yr of BRITE-Constellation photometry of the luminous blue variable P Cygni: properties of the stochastic low-frequency variability
Elliott, A.; Richardson, N. D.; Pablo, H.; ... Handler, G. et al. 2022, Monthly Notices of the Royal Astronomical Society 509, 4246-4255

Mass transfer and tidally tilted pulsation in the Algol-type system TZ Dra
Kahraman Alicavus, F.; Handler, G.; Alicavus, F.; et al., 2022, Monthly Notices of the Royal Astronomical Society 510, 1413 - 1424

The post-common-envelope binary central star of the planetary nebula Ou 5: a doubly eclipsing post-red-giant-branch system
Jones, D.; Munday, J.; Corradi, R. L. M.; ... Sowicka, P.; et al., 2022, Monthly Notices of the Royal Astronomical Society 510, 3102 - 3110

Tidally Tilted Pulsations in HD 265435, a Subdwarf B Star with a Close White Dwarf Companion
Jayaraman, R.; Handler, G. et al. 2022, The Astrophysical Journal Letters 928, L14, 1 - 12

TIC 5724661: A Long-period Binary with a Pulsating sdB Star and Delta Scuti Variable
Jayaraman, R.; Rappaport, S. A.; Nelson, L.; Kurtz, D. W.; Dufresne, G.; Handler, G. et al. 2022, The Astrophysical Journal 936, 123, 1-14

Kepler and TESS Observations of PG 1159-035
Oliveira da Rosa, G.; Kepler, S. O.; Corsico, A. H.; ... Handler, G. et al., 2022, The Astrophysical Journal 936, 187, 1 - 22

Comprehensive spectroscopic and photometric study of pulsating eclipsing binary star AI Hya
Kahraman Alicavus, F.; Pawar, T.; Helminiak, K. G.; Handler, G. et al., 2023, Monthly Notices of the Royal Astronomical Society, 520, 1601 - 1612

HD 42477: coupled r modes, g modes, and a p mode in an A0Vnne star
Kurtz, D. W.; Jayaraman, R.; Sowicka, P.; Handler, G. et al. 2023, Monthly Notices of the Royal Astronomical Society 521, 4765 - 4774

In conference proceedings:

The BRITE-Constellation Nanosatellite Space Mission And Its First Scientific Results
Handler, G.; Pigulski, A.; Weiss, W. W. et al., 2016, in 'Seismology of the Sun and the Distant Stars 2016. Using Today's Successes to Prepare the Future. Joint TASC2/KASC9 Workshop - SPACEINN/HELAS8 Conference, EPJ Web of Conferences, 1 - 5

UVSat: a concept of an ultraviolet/optical photometric satellite
A. Pigulski, A. Baran, M. Bzowski, H. Cugier, B. Czerny, J. Daszynska-Daszkiewicz, W. Dziembowski, G. Handler et al., 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science', Polish Astronomical Society, 5, 76 - 81

Magnetic B stars observed with BRITE: Spots, magnetospheres, binarity, and pulsations
G. A. Wade, D. H. Cohen, C. Fletcher, G. Handler, ... M. Rybicka, et al. 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science', Polish Astronomical Society, 5, 94 - 100

Six Beta Cephei stars as seen with BRITE and from the ground
G. Handler, 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science', Polish Astronomical Society, 5, 151 - 157

Analysis of Beta Cephei stars observed by BRITE
E. Zoclonska, 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science', Polish Astronomical Society, 5, 158 - 162

Analysis of photometry of luminous hot stars from BRITE
M. Rybicka et al., 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science', Polish Astronomical Society, 5, 163 - 166

Pulsations and outbursts in Be stars: Small differences - big impacts
D. Baade, Th. Rivinius, A. Pigulski, A. Carciofi, G. Handler, et al., 2016, in '2nd BRITE-Constellation Science Conference: small satellites - big science' Polish Astronomical Society, 5, 196 - 205

Spectroscopy of cataclysmic variable ES Ceti
K. Bakowska, T. R. Marsh, 2017, in 'XXXVIII Polish Astronomical Society Meeting', Polish Astronomical Society, 7, 190 - 192

What Have We Learnt About B-Type Main Sequence Pulsators from the BRITE Data?
J. Daszynska-Daszkiewicz, P. Walczak, A. Pamyatnykh, G. Handler, A. Pigulski, 2017, in 'The Third BRITE Science Conference', Polish Astronomical Society, 8, 64 - 68

BRITE view of Sigma Scorpii, Beta Cephei-type star studied for over a century
A. Pigulski, H. Cugier, G. Handler, et al., 2017, in 'The Third BRITE Science Conference', Polish Astronomical Society, 8, 77 - 79

BRITE and ground-based photometry and spectroscopy of the Beta Cephei star Epsilon Persei
E. Zoclonska, 2017, in 'The Third BRITE Science Conference', Polish Astronomical Society, 8, 94 - 98

New results of a variability study of bright OB supergiants with BRITE
M. Rybicka, E. Zoclonska, S. Tomic, 2017, in 'The Third BRITE Science Conference', Polish Astronomical Society, 8, 134 - 138

Evolving pulsation of the slowly rotating magnetic Beta Cep star Xi1 CMa
Begy, S. B.; Wade, G. A.; Handler, G. et al., 2017, in 'The Third BRITE Science Conference', Polish Astronomical Society, 8, 154 - 158

The existence of hot Gamma Doradus and A-F-type hybrid stars
Kahraman Alicavus, F.; Poretti, E.; Catanzaro, G.; Smalley, B.; Niemczura, E.; Rainer, M.; Handler, G., 2020, in 'Stars and their Variability Observed from Space', University of Vienna, 2, 103

Eclipsing binaries with possible Beta Cephei variables
Kahraman Alicavus, F.; Handler, G., 2020, in 'Stars and their Variability Observed from Space', University of Vienna, 2, 339

Tidally Tilted Pulsators
Handler, G.; Jayaraman, R.; Kurtz, D. W.; Fuller, J.; Rappaport, S. A., 2022, in 'XL Polish Astronomical Society Meeting', Polish Astronomical Society, 12, 183 - 186

 

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