HRZZ | HRZZ Research Project (IP-2014-09-8656) Stars and dust: structure, composition and interaction |
Principal Investigator | Prof. dr. sc. Krešimir Pavlovski (Zagreb) |
Researchers |
Prof. dr. sc. Dubravka Kotnik-Karuza (Rijeka) Prof. dr. sc. Goranka Bilalbegović (Zagreb) Prof. dr. sc. Dejan Vinković (Split) Dr. sc. Ettore Tamajo (Velika Gorica) Dr. sc. Tomislav Jurkić (Rijeka) Dr. sc. Petar Mimica (Valencia) Dr. sc. Miljenko Čemeljić (Warsaw) Dr. sc. Ahmet Dervisoglu (Zagreb) |
Web address: | http://www.phy.hr/~kresimir/STARDUST/ |
Project duration | 48 months (1 May 2015 - 30 April 2019) |
Total grant awarded | 951,120.00 kn |
Research topics | Stellar Structure and Evolution, Binary Stars, Symbiotic Stars, Interstellar and Circumstellar Dust and Disks |
This project deals with stars and cosmic dust, important baryonic constituents of the Universe. The interplay between dust, gas and stars is present throughout stellar and Galactic evolution, from star and planet formation until ultimate final stages in supernovae explosions. In the era of precision cosmology and of search for life on other worlds, stellar astrophysics has become extremely relevant. We address a number of important topics in the various stages of stellar evolution and interaction of stars with their circumstellar and interstellar environment. Our principal objective is probing stellar evolution models. With sophisticated methods of spectral disentangling we pioneered and upgraded we are able to measure metallicity of the stars in binaries with the high precision and breakdown the main obstacle in comparing empirical data to models. We plan to analyse benchmark binary stars along the mass sequence to provide the stringent tests of different stellar evolution models and parametrise efficiency of rotational mixing, convective core overshooting or mixing length. Radiative transfer calculations in dusty envelopes and protoplanetary disks, including MHD calculations in boundary star-disk region would be performed with a high spatial resolution which is enabled by the code LELUYA devolped by one of us. Ab initio quantum density functional theory calculations would enable identifications and composition of interstellar dust nanoparicles from IR and X-ray spectra obtained on-board space telescopes. This is is the first attempt to organise dispersed astrophysical research in Croatia into more focused direction. The research team is assembled with the Croatian scientist from 6 Croatian and 2 foreign institutions including all the four major Croatian universities. We hope this would promote collaborative research and make astro-physical research in the country more coherent and better organised.
3. Čemeljić, M., Parthasarathy, V., and Kluzniak, W.
Analytical solution for magnetized thin accretion disk in comparison with numerical simulationsProc. IAU Symposium High-mass X-ray binaries: illuminating the passage from massive binaries to merging compact objects (submitted) (2018)
Preprint: arxiv.org/abs/1812.09132
2. Čemeljić, M.,
Light curve variation caused by accretion column switching stellar hemispheresMonthly Notices of the RAS (submitted) (2018)
Preprint: arxiv.org/abs/1811.07652
1. Čemeljić, M.,
"Atlas" of numerical solutions for star-disk magnetospheric interactionAstronomy & Astrophysics (submitted) (2018)
Preprint: arxiv.org/abs/1811.02808
19. Hoyman, B., Ozdarcan, O., Dervisoglu, A., Yontan, T., Cakirli, O.,
Analysis of a detached eclipsing binary at near the turnoff point of the open cluster NGC 6791 in Kepler field,New Astronomy, 68, 10-19, (2019)
18. Pilecki, B., Dervisoglu, A., Gieren, W., Smolec, R., Soszynski, I., Pietrzynski, G., Thompson, I. B., Taormina, T.,
The dynamical mass and evolutionary status of the type-II Cepheid in the eclipsing binary system OGLE-LMC-T2CEP-211 with a double-ring diskAstrophysical Journal, 868, 30 (2018)
Preprint: https://doi.org/10.3847/1538-4357/aae68f
17. Dervisoglu, A., Pavlovski, K., Lehmann, H., Southworth, J., Bewsher, D.,
Evidence for conservative mass transfer in the classical Algol system delta Librae from its surface carbon-to-nitrogen abundance ratioMNRAS, 481, 5660-5674 (2018)
Preprint: https://doi.org/10.1093/mnras/sty2684
16. Pavlovski, K., Southworth, J., Tamajo, E.,
Physical properties and CNO abundances for high-mass stars in four main-sequence detached eclipsing binaries: V478 Cyg, AH Cep, V453 Cyg, and V578 MonMNRAS, 481, 3129-3147 (2018)
Preprint: https://doi.org/10.1093/mnras/sty2516
15. Themessl, N., Hekker, S., Southworth, J., Beck, P. G., Pavlovski, K., Tkachenko, A., Angelou, G. C., Ball, W. H., Barban, C., Corsaro, E., Elsworth, Y., Handberg, R., Kallinger, T.
Oscillating red giants in eclipsing binary systems: empirical reference value for asteroseismic scaling relation
MNRAS, 478,4669-4696 (2018)
Preprint: https://doi.org/10.1093/mnras/sty1113
14. Rucinski, S.M., Pigulski, A., Popowicz, A., Kuschnig, R., Kozłowski, S., Moffat, A.F.J., Pavlovski, K., Handler, G., Pablo, H., Wade, G.A., Weiss, W.W. & Zwintz, K.
Light-curve Instabilities of β Lyrae Observed by the BRITE Satellites
Astronomical Journal, 156, 12 (2018)
Preprint: 10.3847/1538-3881/aac38b
13. Bilalbegović, G., Maksimović, A., & Valencic, L. A.
Tetrahedral hydrocarbon nanoparticles in space: X-ray spectra
MNRAS, 476, 5358 (2018)
Preprint: 10.1093/mnras/sty607
12. Beck, P.G., Kallinger, T., Pavlovski, K., Palacios,A., Tkachenko, A., Mathis, S., Garcia, R. A., Corsaro, E., Johnston, C., Mosser, B., Ceillier, T., do Nascimento, Jr., J.-D., & Raskin, G.
Seismic probing of the first dredge-up event through the eccentric red-giant and red-giant spectroscopic binary KIC 9163796. How different are red-giant stars with a mass ratio of 1.015?
Astronomy & Astrophysics, 612, A22 (2018)
Preprint: 10.1051/0004-6361/201731269
11. Jurkić, T., Kotnik-Karuza, D.
Dust around the cool component of D-type symbiotic binaries
Astronomy Letters, 44, 265-277 (2018)
Preprint: 10.1134/S1063773718040035
10. Bilalbegović, G., Maksimović, A., & Mohaček-Grošev, V.
Missing Fe: hydrogenated iron nanoparticles
MNRAS Letters, 466, L14 (2017)
Preprint: 10.1093/mnrasl/slw226
9. Graczyk, D., Smolec, R., Pavlovski, K., Southworth, J., Pietrzynski, G., Maxted, P.F.L., Konorski, P., Gieren, W., Pilecki, B., Taormina, M., Suchomska, K., Karczmarek, P., Gorski, M., Wielgorski, P., and Anderson, R.I.
A solar twin in the eclipsing binary LL Aqr
A&A, 594, A92 (2016)
8. Rappaport, S., Lehmann, H., Kalomeni, B., Borkovits, T., Latham, D., Bieryla, A., Ngo, H., Mawet, D., Howell, S., Horch, E., Jacobs, T.L., LaCourse, D., Sodor, A., Vanderburg, A., and Pavlovski, K.
A Quintuple Star System Containing Two Eclipsing Binaries
MNRAS 462, 1812 (2016)
7. Lacy, C.H.S., Fekel, F.C., Pavlovski, K., Torres, G., and Muterspaugh, M.M.
Absolute properties of the Pre-Main-Sequence Eclipsing Binary Star NP Persei
Astron. J., 152, 2 (2016)
6. Bilalbegović, G.
A note on cement in asteroids
Icarus, 275, 249 (2016)
DOI: 10.1016/j.icarus.2016.04.029
5. Tkachenko, A., Matthews, J.M., Aerts, C., Pavlovski, K., Papics, P.I., Zwintz, K., Cameron, C., Walker, G.A.H., Kuschnig, R., Degroote, P., Moravveji, E., Kolbas, V., Guenther, D.B., Moffat, A.F.J., Rowe, J.F., Rucinski, S.M., Sasselov, D., Weiss, W.W.
Stellar modelling of Spica, a high-mass spectroscopic binary with a beta Cep variable primary component
MNRAS, 458, 1964 (2016)
DOI: 10.1093/mnras/stw255
4. Torres, G., Lacy, S.C.H., Pavlovski, K., Fekel, F.C., Muterspaugh, M.W.
Absolute dimensions of the metallic-line eclipsing binary V501 Monocerotis
Astron. J., 150, 154 (2015)
3. Torres, G., Claret, A., Pavlovski, K., & Dotter, A.
Capella (alpha Aurigae) Revisited: New Binary Orbit, Physical Properties, and Evolutionary State
Astrophys. J., 807, 26 (2015)
2. Kolbas, V., Pavlovski, K., Southworth, J., Lee, C.-U., Lee, D.-J., Lee, J.W., Kim, S.-L., Kim, H.-I., Smalley, B., & Tkachenko, A.
Spectroscopically resolving the Algol triple system
MNRAS, 451, 4150 (2015)
1. Maxted, P.F.L., Hutcheon, R.J., Torres, G., Lacy, C.H.S., Southworth, J., Smalley, B., Pavlovski, K., Marschall, L.A., & Clausen, J.V.
Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tauri
Astron. Astrophys., 578, A25 (2015)
DOI: 10.1051/0004-6361
1. Torres, G., Lacy, C.H.S., Pavlovski, K., Feiden, G.A., Sabby. J.A., Bruntt, H., & Clausen, J.V.
The Benchmark Eclipsing Binary V530 Ori: A Critical Test of Magnetic Evolution Models for Low-Mass Stars
Proceedinsg of a conference 'Living Together: Planets, Host Stars and Binaries', Lytomišl, 8-12 September 2014, Eds. S.M. Rucinski, G. Torres, & M. Zejda
ASP Conference Series, Vol. 496, p. 169 (2015)
2. Derekas, A., Borkovits, T., Fuller, J., Szabo, Gy. M., Pavlovski, K., Csak, B., Dozsa, A., Kovacs, J., Szabo, R., Hambleton, K.M., Kinemuchi, K., Kolbas, V., Kurtz, D.W., Maloney, F., Prsa, A., Southworth, J., Sztakovics, J., Biro, I.B., Jankovics, I.
HD 183648: a Kepler eclipsing binary with anomalous ellipsoidal variations and a pulsating component
Proceedinsg of a conference 'The Space Photometry Revolution - CoRoT Symposium 3, Kepler KASC-7 Joint Meeting', Toulouse, Eds. R.A. Garcia & J. Ballot
EPJ Web of Conferences, Vol. 101, id. 06021 (2015)
3. Jurkić, T., & Kotnik-Karuza, D.
Circumstellar Dust in Symbiotic Novae
Proceedinsg of a conference 'The Physics of Evolved Stars: A Conference Dedicated to the Memory of Olivier Chesneau', Eds. E. Lagadec, F. Millour and T. Lanz
EAS Publication Series, Vol. 71-72, 159-162 (2015)
DOI: 10.1051/eas/1571035
4. Harvey, E., Redman, M. P., Boumis, P., Kopsacheili, M., Akras, S., Sabin, L., Jurkić, T.
The circumstellar environment of pre-SN Ia systems
Conference Supernova Remnants: An Odyssey in Space after Stellar Death, Chania, Greece
Preprint: arxiv.org/abs/1608.05016
1. Pavlovski, K., Southworth, J., & Tkachenko, A.
Quantitative spectroscopy of stars in close binary systems (contributed talk)
Conference 'Massive Stars and the Gaia-ESO Survey'
Brussels, Belgium, 5-7 May, 2015
2. Jurkić, T., & Kotnik-Karuza, D.
Circumstellar Dust in Symbiotic Novae (invited talk)
Conference 'The Physics of Evolved Stars'
Nice, France, 8-12 June 2015
3. Beck, P., Garcia, R.A., Ceillier, T., Mathis, S., Kallinger, T., & Pavlovski, K.
Seismic analysis of red giant stars in binary systems - the heartbeat of red giants (contributed talk)
Conference 'The Sun, the stars, and solar-stellar relations'
Freiburg, Germany, 31 August -4 September 2015
4. Pavlovski, K., & Southworth, J.
Measuring the radii of the components of Algol from high-precision BRITE photometry (contributed talk)
Conference 'Science with BRITE-Constellation: initial results'
Gdansk, Poland, 14-18 September 2015
5. Bilalbegović, G.
Cement nanoparticles in Space: from stars to asteroids (contributed talk)
Workshop 'Silicates in Space'
Heidelberg, Germany, 28 September - 1 October 2015
6. Bilalbegović, G., & Baranović, G.
Sulphur-bearing species in molecular clouds (poster)
Conference 'From clouds to protoplanetary disks: the astrochemical link'
Berlin, Germany, 4-8 October 2015
7. Lukačević, I., & Bilalbegović, G.
Rendgenski spektri nanočestica dijamanta oko zvijezda Elias 1 i HD 97048 (poster)
9. znanstveni sastanak Hrvatskog fizikalnog drustva
Umag, 5.-7. 10. 2015.
8. Jurkić, T. & Kotnik-Karuza, D.
Phase dispersion minimisation as a tool for analysis of long-term brightness variations in light curves (poster)
LSST@Europe2
Belgrade, Serbia, 20-24 June 2016
1. Supernovae have the right stuff to mix cement in space by Jacob Aron
New Scientist, Daily News:
2. Capella’s Secrets by Meredith Rawls
Astrobites https://astrobites.org/2015/06/11/capellas-secrets/