TESS Cycle 2 observations of roAp stars with 2-min cadence data

Autor: Holdsworth, D. L., Cunha, M. S., Lares-Martiz, M., Kurtz, D. W., Antoci, V., Forteza, S. Barceló, De Cat, P., Derekas, A., Kayhan, C., Ozuyar, D., Skarka, M., Hey, D. R., Shi, F., Bowman, D. M., Kobzar, O., Gómez, A. Ayala, Bognár, Zs., Buzasi, D. L., Ebadi, M., Fox-Machado, L., Hernández, A. García, Ghasemi, H., Guzik, J. A., Handberg, R., Handler, G., Hasanzadeh, A., Jayaraman, R., Khalack, V., Kochukhov, O., Lovekin, C. C., Mikołajczyk, P., Mkrtichian, D., Murphy, S. J., Niemczura, E., Olafsson, B. G., Pascual-Granado, J., Paunzen, E., Posiłek, N., Safari, A. Ramón-Ballesta H., Samadi-Ghadim, A., Smalley, B., Sódor, Á., Stateva, I., Suárez, J. C., Szabó, R., Wu, T., Ziaali, E., Zong, W., Seager, S.

We present the results of a systematic search of the Transiting Exoplanet Survey Satellite (TESS) 2-min cadence data for new rapidly oscillating Ap (roAp) stars observed during the Cycle 2 phase of its mission. We find seven new roAp stars previously

Externí odkaz: http://arxiv.org/abs/2312.04199

The Astropy Project: Sustaining and Growing a Community-oriented Open-source Project and the Latest Major Release (v5.0) of the Core Package

Autor: The Astropy Collaboration, Price-Whelan, Adrian M., Lim, Pey Lian, Earl, Nicholas, Starkman, Nathaniel, Bradley, Larry, Shupe, David L., Patil, Aarya A., Corrales, Lia, Brasseur, C. E., Nöthe, Maximilian, Donath, Axel, Tollerud, Erik, Morris, Brett M., Ginsburg, Adam, Vaher, Eero, Weaver, Benjamin A., Tocknell, James, Jamieson, William, van Kerkwijk, Marten H., Robitaille, Thomas P., Merry, Bruce, Bachetti, Matteo, Günther, H. Moritz, Aldcroft, Thomas L., Alvarado-Montes, Jaime A., Archibald, Anne M., Bódi, Attila, Bapat, Shreyas, Barentsen, Geert, Bazán, Juanjo, Biswas, Manish, Boquien, Médéric, Burke, D. J., Cara, Daria, Cara, Mihai, Conroy, Kyle E, Conseil, Simon, Craig, Matthew W., Cross, Robert M., Cruz, Kelle L., D'Eugenio, Francesco, Dencheva, Nadia, Devillepoix, Hadrien A. R., Dietrich, Jörg P., Eigenbrot, Arthur Davis, Erben, Thomas, Ferreira, Leonardo, Foreman-Mackey, Daniel, Fox, Ryan, Freij, Nabil, Garg, Suyog, Geda, Robel, Glattly, Lauren, Gondhalekar, Yash, Gordon, Karl D., Grant, David, Greenfield, Perry, Groener, Austen M., Guest, Steve, Gurovich, Sebastian, Handberg, Rasmus, Hart, Akeem, Hatfield-Dodds, Zac, Homeier, Derek, Hosseinzadeh, Griffin, Jenness, Tim, Jones, Craig K., Joseph, Prajwel, Kalmbach, J. Bryce, Karamehmetoglu, Emir, Kałuszyński, Mikołaj, Kelley, Michael S. P., Kern, Nicholas, Kerzendorf, Wolfgang E., Koch, Eric W., Kulumani, Shankar, Lee, Antony, Ly, Chun, Ma, Zhiyuan, MacBride, Conor, Maljaars, Jakob M., Muna, Demitri, Murphy, N. A., Norman, Henrik, O'Steen, Richard, Oman, Kyle A., Pacifici, Camilla, Pascual, Sergio, Pascual-Granado, J., Patil, Rohit R., Perren, Gabriel I, Pickering, Timothy E., Rastogi, Tanuj, Roulston, Benjamin R., Ryan, Daniel F, Rykoff, Eli S., Sabater, Jose, Sakurikar, Parikshit, Salgado, Jesús, Sanghi, Aniket, Saunders, Nicholas, Savchenko, Volodymyr, Schwardt, Ludwig, Seifert-Eckert, Michael, Shih, Albert Y., Jain, Anany Shrey, Shukla, Gyanendra, Sick, Jonathan, Simpson, Chris, Singanamalla, Sudheesh, Singer, Leo P., Singhal, Jaladh, Sinha, Manodeep, Sipőcz, Brigitta M., Spitler, Lee R., Stansby, David, Streicher, Ole, Šumak, Jani, Swinbank, John D., Taranu, Dan S., Tewary, Nikita, Tremblay, Grant R., de Val-Borro, Miguel, Van Kooten, Samuel J., Vasović, Zlatan, Verma, Shresth, Cardoso, José Vinícius de Miranda, Williams, Peter K. G., Wilson, Tom J., Winkel, Benjamin, Wood-Vasey, W. M., Xue, Rui, Yoachim, Peter, ZHANG, Chen, Zonca, Andrea

The Astropy Project supports and fosters the development of open-source and openly-developed Python packages that provide commonly needed functionality to the astronomical community. A key element of the Astropy Project is the core package $\texttt{a

Externí odkaz: http://arxiv.org/abs/2206.14220

Study of rotational splittings in $\delta$~Scuti stars using pattern finding techniques

Autor: Ramón-Ballesta, A., Hernández, A. García, Suárez, J. C., Rodón, J. R., Pascual-Granado, J., Garrido, R.

Detecting and understanding rotation in stellar interiors is nowadays one of the unsolved problems in stellar physics. Asteroseismology has been able to provide insights on rotation for the Sun, solar-like stars, and compact objects like white dwarfs

Externí odkaz: http://arxiv.org/abs/2106.10059

Searching for signatures of chaos in gamma-ray light curves of selected Fermi-LAT blazars

Autor: Ostapenko, O., Tarnopolski, M., Żywucka, N., Pascual-Granado, J.

Blazar variability appears to be stochastic in nature. However, a possibility of low-dimensional chaos was considered in the past, but with no unambiguous detection so far. If present, it would constrain the emission mechanism by suggesting an underl

Externí odkaz: http://arxiv.org/abs/2101.06652

Self-consistent method to extract non-linearities from pulsating stars light curves I. Combination frequencies

Autor: Lares-Martiz, M., Garrido, R., Pascual-Granado, J.

Combination frequencies are not solutions of the perturbed stellar structure equations. In dense power spectra from a light curve of a given multi-periodic pulsating star, they can compromise the mode identification in an asteroseismic analysis, henc

Externí odkaz: http://arxiv.org/abs/2005.10901