%0 Journal Article %1 WOS:000614612400002 %A Viana, C A P %A de Freitas, D B %C TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND %D 2020 %I IOP PUBLISHING LTD %J EPL %K +m} +z; 05; 10; 20; 90; 97; Jg; {98; %N 6 %R 10.1209/0295-5075/131/69002 %T Non-extensive processes associated with heating of the Galactic disc %V 131 %X We analyse the mechanisms ruling galactic disc heating through the dynamics of space velocities U, V and W, extracted from the Geneva-Copenhagen catalogue. To do this, we use a model based on non-extensive statistical mechanics, where we derive the probability distribution functions that quantify the non-Gaussian effects. Furthermore, we find that the deviation q -1 at a given stellar age follows a non-random behaviour. As a result, the q-index behaviour indicates that the vertical component W, perpendicular to the Galactic plane, does not ``heat up'' at random, which is in disagreement with previous works that attributed the evolution of W to randomness. Finally, our results bring a new perspective to this matter and open the way for studying Galactic kinematic components through the eyes of more robust statistical models that consider non-Gaussian effects.The authors would like to dedicate this paper to all the victims of the COVID-19 pandemic around the world.

@article{WOS:000614612400002, abstract = {We analyse the mechanisms ruling galactic disc heating through the dynamics of space velocities U, V and W, extracted from the Geneva-Copenhagen catalogue. To do this, we use a model based on non-extensive statistical mechanics, where we derive the probability distribution functions that quantify the non-Gaussian effects. Furthermore, we find that the deviation q -1 at a given stellar age follows a non-random behaviour. As a result, the q-index behaviour indicates that the vertical component W, perpendicular to the Galactic plane, does not ``heat up'' at random, which is in disagreement with previous works that attributed the evolution of W to randomness. Finally, our results bring a new perspective to this matter and open the way for studying Galactic kinematic components through the eyes of more robust statistical models that consider non-Gaussian effects.The authors would like to dedicate this paper to all the victims of the COVID-19 pandemic around the world.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND}, author = {Viana, C A P and de Freitas, D B}, biburl = {https://www.bibsonomy.org/bibtex/2b43df8e9da2fff0f2f496c5c4f23e83f/ppgfis_ufc_br}, doi = {10.1209/0295-5075/131/69002}, interhash = {11926c188d764df1500e44ab042bd2b9}, intrahash = {b43df8e9da2fff0f2f496c5c4f23e83f}, issn = {0295-5075}, journal = {EPL}, keywords = {+m} +z; 05; 10; 20; 90; 97; Jg; {98;}, number = 6, publisher = {IOP PUBLISHING LTD}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Non-extensive processes associated with heating of the Galactic disc}, tppubtype = {article}, volume = 131, year = 2020 }