Zobrazeno 1 - 10
of 273
pro vyhledávání: '"Alfaro, Francisco"'
In this contribution, the classical tests of general relativity using the Gutsunaev-Manko metric with slow rotation are obtained. This metric represents the spacetime of an object endowed with mass, magnetic dipole moment and angular moment. These te
Externí odkaz:
http://arxiv.org/abs/2405.03503
In this contribution, we present a short account of gravitational lenses and how to calculate different properties of its images in the case of having a transparent distribution of matter such as the uniform transparent sphere, isothermal gas sphere,
Externí odkaz:
http://arxiv.org/abs/2405.00993
An study of the equatorial circular motion of photons and massive particles around a rotating compact body like a neutron star is presented. For this goal, we use an approximate Kerr-like metric with mass quadrupole as perturbation. The effect of thi
Externí odkaz:
http://arxiv.org/abs/2404.19268
Autor:
Herbert, Carys, Froebrich, Dirk, Vanaverbeke, Siegfried, Scholz, Aleks, Eislöffel, Jochen, Urtly, Thomas, Walton, Ivan L., Wiersema, Klaas, Quinn, Nick J., Piehler, Georg, Aimar, Mario Morales, García, Rafael Castillo, Vanmunster, Tonny, Alfaro, Francisco C. Soldán, de la Cuesta, Faustino García, Licchelli, Domenico, Perez, Alex Escartin, Mañanes, Esteban Fernández, Ribes, Noelia Graciá, González, José Luis Salto, Futcher, Stephen R. L., Nelson, Tim, Dvorak, Shawn, Moździerski, Dawid, Kotysz, Krzysztof, Mikołajczyk, Przemysław, Fleming, George, Phillips, Mark, Vale, Tony, Dubois, Franky, Eggenstein, Heinz-Bernd, Heald, Michael A., Lewin, Pablo, OKeeffe, Derek, Popowicz, Adam, Bernacki, Krzysztof, Malcher, Andrzej, Lasota, Slawomir, Fiolka, Jerzy, Dustor, Adam, Percy, Stephen C., Devine, Pat, Patel, Aashini L., Dickers, Matthew D., Dover, Lord, Grozdanova, Ivana I., Urquhart, James S., Lynch, Chris J. R.
We present spot properties on 32 periodic young stellar objects in IC 5070. Long term, $\sim$5 yr, light curves in the $V$, $R$, and $I$-bands are obtained through the HOYS (Hunting Outbursting Young Stars) citizen science project. These are dissecte
Externí odkaz:
http://arxiv.org/abs/2403.10595
Autor:
Froebrich, Dirk, Scholz, Aleks, Campbell-White, Justyn, Vanaverbeke, Siegfried, Herbert, Carys, Eislöffel, Jochen, Urtly, Thomas, Long, Timothy P., Walton, Ivan L., Wiersema, Klaas, Quinn, Nick J., Rodda, Tony, González-Carballo, Juan-Luis, Aimar, Mario Morales, García, Rafael Castillo, Alfaro, Francisco C. Soldán, de la Cuesta, Faustino García, Licchelli, Domenico, Perez, Alex Escartin, González, José Luis Salto, Deldem, Marc, Futcher, Stephen R. L., Nelson, Tim, Dvorak, Shawn, Moździerski, Dawid, Kotysz, Krzysztof, Mikołajczyk, Przemysław, Fleming, George, Phillips, Mark, Vale, Tony, Öğmen, Yenal, Dubois, Franky, Rolfe, Samantha M., Campbell, David A., Eggenstein, Heinz-Bernd, Hambsch, Franz-Josef, Heald, Michael A., Lewin, Pablo, Rose, Adam C., Stone, Geoffrey, Crow, Martin Valentine, Dawes, Simon Francis, OKeeffe, Derek, Popowicz, Adam, Bernacki, Krzysztof, Malcher, Andrzej, Lasota, Slawomir, Fiolka, Jerzy, Dustor, Adam, Vajpayee, Amritanshu, Devine, Pat, Kolb, Matthias, Marquette, Jean-Baptiste, Ruppel, Gregg L., Crowson, Dan R., da Silva, Cledison Marcos, Michaud, Michel, Patel, Aashini L., Dickers, Matthew D., Dover, Lord, Grozdanova, Ivana I., Urquhart, James S., Lynch, Chris J. R.
The Hunting Outbursting Young Stars (HOYS) project performs long-term, optical, multi-filter, high cadence monitoring of 25 nearby young clusters and star forming regions. Utilising Gaia DR3 data we have identified about 17000 potential young stellar
Externí odkaz:
http://arxiv.org/abs/2401.16883
Autor:
Frutos-Alfaro, Francisco
Publikováno v:
Communications in Theoretical Physics, 76, 085404, 2024
Approximate all-terrain spacetimes for astrophysical applications are presented. The metrics possess five relativistic multipole moments, namely mass, rotation, mass quadrupole, charge, and magnetic dipole moment. All these spacetimes approximately s
Externí odkaz:
http://arxiv.org/abs/2308.00270
Autor:
Froebrich, Dirk, Hillenbrand, Lynne A., Herbert, Carys, De, Kishalay, Eislöffel, Jochen, Campbell-White, Justyn, Kahar, Ruhee, Hambsch, Franz-Josef, Urtly, Thomas, Popowicz, Adam, Bernacki, Krzysztof, Malcher, Andrzej, Lasota, Slawomir, Fiolka, Jerzy, Jozwik-Wabik, Piotr, Dubois, Franky, Logie, Ludwig, Rau, Steve, Phillips, Mark, Fleming, George, Farfán, Rafael Gonzalez, Alfaro, Francisco C. Soldán, Nelson, Tim, Futcher, Stephen R. L., Rolfe, Samantha M., Campbell, David A., Vale, Tony, Devine, Pat, Moździerski, Dawid, Mikołajczyk, Przemysław J., Eggenstein, Heinz-Bernd, Rodriguez, Diego, Walton, Ivan L, Vanaverbeke, Siegfried, Merrikin, Barry, Öğmen, Yenal, Perez, Alex Escartin, Aimar, Mario Morales, Piehler, Georg, Dover, Lord, Patel, Aashini L., Miller, Niall, Finch, Jack, Hankins, Matt, Moore, Anna M., Travouillon, Tony, Szczepanski, Marek
This paper is one in a series reporting results from small telescope observations of variable young stars. Here, we study the repeating outbursts of three likely Be stars based on long-term optical, near-infrared, and mid-infrared photometry for all
Externí odkaz:
http://arxiv.org/abs/2302.02696
Autor:
Eduarte-Rojas, Adrián Francisco, Frutos-Alfaro, Francisco, Carboni, Rodrigo, Alvarado, Daniel
In this contribution, the motion of unitary mass test particles in a perturbed Kerr-like metric is studied using simulations in the configuration and phase space. Our metric represents the approximate exterior spacetime of a massive rotating body wit
Externí odkaz:
http://arxiv.org/abs/2111.13739
Autor:
Froebrich, Dirk, Derezea, Efthymia, Scholz, Aleks, Eislöffel, Jochen, Vanaverbeke, Siegfried, Kume, Alfred, Herbert, Carys, Campbell-White, Justyn, Miller, Niall, Stecklum, Bringfried, Makin, Sally V., Urtly, Thomas, Alfaro, Francisco C. Soldán, Schwendeman, Erik, Stone, Geoffrey, Phillips, Mark, Fleming, George, Farfán, Rafael Gonzalez, Vanmunster, Tonny, Heald, Michael A., Mañanes, Esteban Fernández, Nelson, Tim, Eggenstein, Heinz-Bernd, Dubois, Franky, Logie, Ludwig, Rau, Steve, Wiersema, Klaas, Quinn, Nick, Rodriguez, Diego, García, Rafael Castillo, Killestein, Thomas, Vale, Tony, Licchelli, Domenico, Deldem, Marc, Piehler, Georg, Moździerski, Dawid, Kotysz, Krzysztof, Kowalska, Katarzyna, Mikołajczyk, Przemysław, Futcher, Stephen R. L., Long, Timothy P., Aimar, Mario Morales, Merrikin, Barry, Johnstone, Stephen, Dubovský, Pavol A., Kudzej, Igor, Pickard, Roger, Billington, Samuel J., Dover, Lord, Zegmott, Tarik, Evitts, Jack J., Munia, Alejandra Traspas, Price, Mark C.
Studying rotational variability of young stars is enabling us to investigate a multitude of properties of young star-disk systems. We utilise high cadence, multi-wavelength optical time series data from the Hunting Outbursting Young Stars citizen sci
Externí odkaz:
http://arxiv.org/abs/2107.08524