Zobrazeno 1 - 10
of 2 387
pro vyhledávání: '"MARTIN, NICOLAS"'
Autor:
Carlberg, Raymond G., Ibata, Rodrigo, Martin, Nicolas F., Starkenburg, Else, Aguado, David S., Malhan, Khyati, Venn, Kim
The C-19 star stream has the abundance characteristics of an unusually metal poor globular cluster but kinematically is uncharacteristically hot and wide for a cluster stream, having a line of sight velocity dispersion of 6 \kms\ and a 1-sigma width
Externí odkaz:
http://arxiv.org/abs/2410.22966
We provide an updated inference of the proper motion of M31 using the Gaia DR3 proper motions of bright stars from the disc of M31. By refining the motion of the quasar reference frame, and statistically accounting for the variations in the inferred
Externí odkaz:
http://arxiv.org/abs/2410.18180
Autor:
Sestito, Federico, Fernandez-Alvar, Emma, Brooks, Rebecca, Olson, Emma, Carigi, Leticia, Jofre, Paula, Silva, Danielle de Brito, Eldridge, Camilla J. L., Vitali, Sara, Venn, Kim A., Hill, Vanessa, Ardern-Arentsen, Anke, Kordopatis, Georges, Martin, Nicolas F., Navarro, Julio F., Starkenburg, Else, Tissera, Patricia B., Jablonka, Pascale, Lardo, Carmela, Lucchesi, Romain, Buck, Tobias, Amayo, Alexia
We analyse high-resolution ESPaDOnS/CFHT spectra of 20 very metal-poor stars ([Fe/H]~$<-2.0$) in the solar neighbourhood (within $\sim2$ kpc) selected to be on planar orbits (with a maximum height of $\lesssim4$ kpc). Targets include 11 prograde and
Externí odkaz:
http://arxiv.org/abs/2409.13813
Autor:
Andersson, Eric P., Rey, Martin P., Pontzen, Andrew, Cadiou, Corentin, Agertz, Oscar, Read, Justin I., Martin, Nicolas F.
Interpretation of data from faint dwarf galaxies is made challenging by observations limited to only the brightest stars. We present a major improvement to tackle this challenge by undertaking zoomed cosmological simulations that resolve the evolutio
Externí odkaz:
http://arxiv.org/abs/2409.08073
Autor:
Viswanathan, Akshara, Byström, Amanda, Starkenburg, Else, Foppen, Anne, Straat, Jill, Montelius, Martin, Sestito, Federico, Venn, Kim A., Navarrete, Camila, Matsuno, Tadafumi, Martin, Nicolas F., Thomas, Guillaume F., Ardern-Arentsen, Anke, Battaglia, Giuseppina, Fouesneau, Morgan, Navarro, Julio, Vitali, Sara
Context: In the context of Galactic archaeology, the outer halo remains relatively unexplored with respect to its metallicity distribution, merger debris, and the abundance of known very/extremely metal-poor ([Fe/H]<-2.5) stars. Aim: We utilize the P
Externí odkaz:
http://arxiv.org/abs/2408.17250
Publikováno v:
Sound and Music Computing Conference, Jul 2024, Porto, Portugal
Chord diagrams are used by guitar players to show where and how to play a chord on the fretboard. They are useful to beginners learning chords or for sharing the hand positions required to play a song.However, the diagrams presented on guitar learnin
Externí odkaz:
http://arxiv.org/abs/2407.14260
Autor:
Volpe, Giorgio, Araújo, Nuno A. M., Guix, Maria, Miodownik, Mark, Martin, Nicolas, Alvarez, Laura, Simmchen, Juliane, Di Leonardo, Roberto, Pellicciotta, Nicola, Martinet, Quentin, Palacci, Jérémie, Ng, Wai Kit, Saxena, Dhruv, Sapienza, Riccardo, Nadine, Sara, Mano, João F., Mahdavi, Reza, Adiels, Caroline Beck, Forth, Joe, Santangelo, Christian, Palagi, Stefano, Seok, Ji Min, Webster-Wood, Victoria A., Wang, Shuhong, Yao, Lining, Aghakhani, Amirreza, Barois, Thomas, Kellay, Hamid, Coulais, Corentin, van Hecke, Martin, Pierce, Christopher J., Wang, Tianyu, Chong, Baxi, Goldman, Daniel I., Reina, Andreagiovanni, Trianni, Vito, Volpe, Giovanni, Beckett, Richard, Nair, Sean P., Armstrong, Rachel
Humanity has long sought inspiration from nature to innovate materials and devices. As science advances, nature-inspired materials are becoming part of our lives. Animate materials, characterized by their activity, adaptability, and autonomy, emulate
Externí odkaz:
http://arxiv.org/abs/2407.10623
Autor:
Fu, Sal Wanying, Weisz, Daniel R., Starkenburg, Else, Martin, Nicolas, Collins, Michelle L. M., Savino, Alessandro, Boylan-Kolchin, Michael, Côté, Patrick, Dolphin, Andrew E., Longeard, Nicolas, Mateo, Mario L., Mercado, Francisco J., Sandford, Nathan R., Skillman, Evan D.
We present $\sim300$ stellar metallicity measurements in two faint M31 dwarf galaxies, Andromeda XVI ($M_V = -7.5$) and Andromeda XXVIII ($M_V = -8.8$) derived using metallicity-sensitive Calcium H & K narrow-band Hubble Space Telescope imaging. Thes
Externí odkaz:
http://arxiv.org/abs/2407.04698
Autor:
Sestito, Federico, Ardern-Arentsen, Anke, Vitali, Sara, Montelius, Martin, Lucchesi, Romain, Venn, Kim A., Martin, Nicolas F., Navarro, Julio F., Starkenburg, Else
Publikováno v:
A&A 690, A333 (2024)
We aim to constrain the chemo-dynamical properties of the Sagittarius (Sgr) dwarf galaxy using carbon abundances. Our sample from the \textit{Pristine} Inner Galaxy Survey (PIGS) includes $\sim 350$ metal-poor ([Fe/H]~$<-1.5$) stars in the main body
Externí odkaz:
http://arxiv.org/abs/2406.18636
Autor:
de La Vernhe, Isaure González Rivera, Hill, Vanessa, Kordopatis, Georges, Gran, Felipe, Fernández-Alvar, Emma, Ardern-Arentsen, Anke, Thomas, Guillaume F., Sestito, Federico, Navarrete, Camila, Martin, Nicolas F., Starkenburg, Else, Viswanathan, Akshara, Battaglia, Giuseppina, Venn, Kim A., Vitali, Sara
Through the chemodynamical characterisation of metal-poor stars, one can efficiently probe the early history of the Milky Way. We aim at decontaminating a sample of $\sim$ 3M giant stars with Gaia DR3 XP-based \textit{Pristine-Gaia} metallicities, to
Externí odkaz:
http://arxiv.org/abs/2406.05728