A large topographic feature on the surface of the trans-Neptunian object (307261) 2002 MS$_4$ measured from stellar occultations

Autor: Rommel, F. L., Braga-Ribas, F., Ortiz, J. L., Sicardy, B., Santos-Sanz, P., Desmars, J., Camargo, J. I. B., Vieira-Martins, R., Assafin, M., Morgado, B. E., Boufleur, R. C., Benedetti-Rossi, G., Gomes-Júnior, A. R., Fernández-Valenzuela, E., Holler, B. J., Souami, D., Duffard, R., Margoti, G., Vara-Lubiano, M., Lecacheux, J., Plouvier, J. L., Morales, N., Maury, A., Fabrega, J., Ceravolo, P., Jehin, E., Albanese, D., Mariey, H., Cikota, S., Ruždjak, D., Cikota, A., Szakáts, R., Aissa, D. Baba, Gringahcene, Z., Kashuba, V., Koshkin, N., Zhukov, V., Fişek, S., Çakır, O., Özer, S., Schnabel, C., Schnabel, M., Signoret, F., Morrone, L., Santana-Ros, T., Pereira, C. L., Emilio, M., Burdanov, A. Y., de Wit, J., Barkaoui, K., Gillon, M., Leto, G., Frasca, A., Catanzaro, G., Sanchez, R. Zanmar, Tagliaferri, U., Di Sora, M., Isopi, G., Krugly, Y., Slyusarev, I., Chiorny, V., Mikuž, H., Bacci, P., Maestripieri, M., Grazia, M. D., de la Cueva, I., Yuste-Moreno, M., Ciabattari, F., Kozhukhov, O. M., Serra-Ricart, M., Alarcon, M. R., Licandro, J., Masi, G., Bacci, R., Bosch, J. M., Behem, R., Prost, J. -P., Renner, S., Conjat, M., Bachini, M., Succi, G., Stoian, L., Juravle, A., Carosati, D., Gowe, B., Carrillo, J., Zheleznyak, A. P., Montigiani, N., Foster, C. R., Mannucci, M., Ruocco, N., Cuevas, F., Di Marcantonio, P., Coretti, I., Iafrate, G., Baldini, V., Collins, M., Pál, A., Csák, B., Fernández-Garcia, E., Castro-Tirado, A. J., Hudin, L., Madiedo, J. M., Anghel, R. M., Calvo-Fernández, J. F., Valvasori, A., Guido, E., Gherase, R. M., Kamoun, S., Fafet, R., Sánchez-González, M., Curelaru, L., Vîntdevară, C. D., Danescu, C. A., Gout, J. -F., Schmitz, C. J., Sota, A., Belskaya, I., Rodríguez-Marco, M., Kilic, Y., Frappa, E., Klotz, A., Lavayssière, M., Oliveira, J. Marques, Popescu, M., Mammana, L. A., Fernández-Lajús, E., Schmidt, M., Hopp, U., Komžík, R., Pribulla, T., Tomko, D., Husárik, M., Erece, O., Eryilmaz, S., Buzzi, L., Gährken, B., Nardiello, D., Hornoch, K., Sonbas, E., Er, H., Burwitz, V., Sybilski, P. Waldemar, Bykowski, W., Müller, T. G., Ogloza, W., Gonçalves, R., Ferreira, J. F., Ferreira, M., Bento, M., Meister, S., Bagiran, M. N., Tekeş, M., Marciniak, A., Moravec, Z., Delinčák, P., Gianni, G., Casalnuovo, G. B., Boutet, M., Sanchez, J., Klemt, B., Wuensche, N., Burzynski, W., Borkowski, M., Serrau, M., Dangl, G., Klös, O., Weber, C., Urbaník, M., Rousselot, L., Kubánek, J., André, P., Colazo, C., Spagnotto, J., Sickafoose, A. A., Hueso, R., Sánchez-Lavega, A., Fisher, R. S., Rengstorf, A. W., Perelló, C., Dascalu, M., Altan, M., Gazeas, K., de Santana, T., Sfair, R., Winter, O. C., Kalkan, S., Canales-Moreno, O., Trigo-Rodríguez, J. M., Tsamis, V., Tigani, K., Sioulas, N., Lekkas, G., Bertesteanu, D. N., Dumitrescu, V., Wilberger, A. J., Barnes, J. W., Fieber-Beyer, S. K., Swaney, R. L., Fuentes, C., Mendez, R. A., Dumitru, B. D., Flynn, R. L., Wake, D. A.

Publikováno v: A&A 678, A167 (2023)

This work aims at constraining the size, shape, and geometric albedo of the dwarf planet candidate 2002 MS4 through the analysis of nine stellar occultation events. Using multichord detection, we also studied the object's topography by analyzing the

Externí odkaz: http://arxiv.org/abs/2308.08062

Spectroscopic confirmation of the binary nature of the hybrid pulsator KIC 5709664 found with the frequency modulation method

Autor: Derekas, A., Murphy, S. J., Dalya, G., Szabo, R., Borkovits, T., Bokon, A., Lehmann, H., Kinemuchi, K., Southworth, J., Bloemen, S., Csak, B., Isaacson, H., Kovacs, J., Shporer, A., Szabo, Gy. M., Thygesen, A. O., Meszaros, Sz.

We started a program to search for companions around hybrid $\delta$ Sct/$\gamma$ Dor stars with the frequency modulation method using Kepler data. Our best candidate was KIC 5709664, where we could identify Fourier peaks with sidelobes, suggesting b

Externí odkaz: http://arxiv.org/abs/1904.03490

Photometric and Spectroscopic Properties of Type Ia Supernova 2018oh with Early Excess Emission from the $Kepler$ 2 Observations

Autor: Li, W., Wang, X., Vinkó, J., Mo, J., Hosseinzadeh, G., Sand, D. J., Zhang, J., Lin, H., Zhang, T., Wang, L., Chen, Z., Xiang, D., Rui, L., Huang, F., Li, X., Zhang, X., Li, L., Baron, E., Derkacy, J. M., Zhao, X., Sai, H., Zhang, K., Howell, D. A., McCully, C., Arcavi, I., Valenti, S., Hiramatsu, D., Burke, J., Rest, A., Garnavich, P., Tucker, B. E., Narayan, G., Shaya, E., Margheim, S., Zenteno, A., Villar, A., Dimitriadis, G., Foley, R. J., Pan, Y. -C., Coulter, D. A., Fox, O. D., Jha, S. W., Jones, D. O., Kasen, D. N., Kilpatrick, C. D., Piro, A. L., Riess, A. G., Rojas-Bravo, C., Shappee, B. J., Holoien, T. W. -S., Stanek, K. Z., Drout, M. R., Auchettl, K., Kochanek, C. S., Brown, J. S., Bose, S., Bersier, D., Brimacombe, J., Chen, P., Dong, S., Holmbo, S., Muñoz, J. A., Mutel, R. L., Post, R. S., Prieto, J. L., Shields, J., Tallon, D., Thompson, T. A., Vallely, P. J., Villanueva Jr., S., Smartt, S. J., Smith, K. W., Chambers, K. C., Flewelling, H. A., Huber, M. E., Magnier, E. A., Waters, C. Z., Schultz, A. S. B., Bulger, J., Lowe, T. B., Willman, M., Sárneczky, K., Pál, A., Wheeler, J. C., Bódi, A., Bognár, Zs., Csák, B., Cseh, B., Csörnyei, G., Hanyecz, O., Ignácz, B., Kalup, Cs., Könyves-Tóth, R., Kriskovics, L., Ordasi, A., Rajmon, I., Sódor, A., Szabó, R., Szakáts, R., Zsidi, G., Milne, P., Andrews, J. E., Smith, N., Bilinski, C., Brown, P. J., Nordin, J., Williams, S. C., Galbany, L., Palmerio, J., Hook, I. M., Inserra, C., Maguire, K., Cartier, Régis, Razza, A., Gutiérrez, C. P., Hermes, J. J., Reding, J. S., Kaiser, B. C., Tonry, J. L., Heinze, A. N., Denneau, L., Weiland, H., Stalder, B., Barentsen, G., Dotson, J., Barclay, T., Gully-Santiago, M., Hedges, C., Cody, A. M., Howell, S., Coughlin, J., Van Cleve, J. E., Cardoso, J. Vinícius de Miranda, Larson, K. A., McCalmont-Everton, K. M., Peterson, C. A., Ross, S. E., Reedy, L. H., Osborne, D., McGinn, C., Kohnert, L., Migliorini, L., Wheaton, A., Spencer, B., Labonde, C., Castillo, G., Beerman, G., Steward, K., Hanley, M., Larsen, R., Gangopadhyay, R., Kloetzel, R., Weschler, T., Nystrom, V., Moffatt, J., Redick, M., Griest, K., Packard, M., Muszynski, M., Kampmeier, J., Bjella, R., Flynn, S., Elsaesser, B.

Supernova (SN) 2018oh (ASASSN-18bt) is the first spectroscopically-confirmed type Ia supernova (SN Ia) observed in the $Kepler$ field. The $Kepler$ data revealed an excess emission in its early light curve, allowing to place interesting constraints o

Externí odkaz: http://arxiv.org/abs/1811.10056

The Kepler Cepheid V1154 Cyg revisited: light curve modulation and detection of granulation

Autor: Derekas, A., Plachy, E., Molnar, L., Sodor, A., Benko, J. M., Szabados, L., Bognar, Zs., Csak, B., Szabo, Gy. M., Szabo, R., Pal, A.

We present a detailed analysis of the bright Cepheid-type variable star V1154 Cygni using 4 years of continuous observations by the Kepler space telescope. We detected 28 frequencies using standard Fourier transform method.We identified modulation of

Externí odkaz: http://arxiv.org/abs/1609.05398

Investigating magnetic activity in very stable stellar magnetic fields: long-term photometric and spectroscopic study of the fully convective M4 dwarf V374 Peg

Autor: Vida, K., Kriskovics, L., Oláh, K., Leitzinger, M., Odert, P., Kővári, Zs., Korhonen, H., Greimel, R., Robb, R., Csák, B., Kovács, J.

Publikováno v: A&A 590, A11 (2016)

The ultrafast-rotating ($P_\mathrm{rot}\approx0.44 d$) fully convective single M4 dwarf V374 Peg is a well-known laboratory for studying intense stellar activity in a stable magnetic topology. As an observable proxy for the stellar magnetic field, we

Externí odkaz: http://arxiv.org/abs/1603.00867