Zobrazeno 1 - 10
of 2 207
pro vyhledávání: '"Petersen, A. S."'
Autor:
Gentile, Marziogiuseppe, Gerlach, Marius, Richter, Robert, van Setten, Michiel J., Petersen, John S., van der Heide, Paul, Holzmeier, Fabian
Publikováno v:
Proc. SPIE 12498, Advances in Patterning Materials and Processes XL, 124980S (30 April 2023)
The dissociative photoionization of \textit{tert}-butyl methyl methacrylate, a monomer unit found in many ESCAP resists, was investigated in a gas phase photoelectron photoion coincidence experiment employing extreme ultraviolet (EUV) synchrotron rad
Externí odkaz:
http://arxiv.org/abs/2411.10177
Autor:
Naik, Aneesh P., Petersen, Michael S.
Publikováno v:
Journal of Open Source Software, 2024, 9(102), 6906
'lintsampler' provides a Python implementation of a technique we term 'linear interpolant sampling': an algorithm to efficiently draw pseudo-random samples from an arbitrary probability density function (PDF). First, the PDF is evaluated on a grid-li
Externí odkaz:
http://arxiv.org/abs/2410.05811
We measure the kinematic signature arising from the Milky Way (MW) disc moving with respect to the outer stellar halo, which is observed as a dipole signal in the kinematics of stellar halo tracers. We quantify how the reflex motion varies as a funct
Externí odkaz:
http://arxiv.org/abs/2402.10841
The inner $\sim5$ kiloparsec (kpc) region of the Milky Way is complex. Unravelling the evolution of the Galaxy requires precise understanding of the formation of this region. We report a study focused on disentangling the inner Galaxy ($r < 5$ kpc) u
Externí odkaz:
http://arxiv.org/abs/2402.07986
Autor:
Brooks, Richard A. N., Sanders, Jason L., Lilleengen, Sophia, Petersen, Michael S., Pontzen, Andrew
We investigate the non-adiabatic effect of time-dependent deformations in the Milky Way (MW) halo potential on stellar streams. Specifically, we consider the MW's response to the infall of the Large Magellanic Cloud (LMC) and how this impacts our abi
Externí odkaz:
http://arxiv.org/abs/2401.11990
Autor:
Petersen, Michael S., Roule, Mathieu, Fouvry, Jean-Baptiste, Pichon, Christophe, Tep, Kerwann
We present LinearResponse.jl, an efficient, versatile public library written in julia to compute the linear response of self-gravitating (3D spherically symmetric) stellar spheres and (2D axisymmetric razor-thin) discs. LinearResponse.jl can scan the
Externí odkaz:
http://arxiv.org/abs/2311.10630
Autor:
Dey, Arjun, Najita, Joan, Filion, Carrie, Han, Jiwon Jesse, Pearson, Sarah, Wyse, Rosemary, Thob, Adrien C. R., Anguiano, Borja, Apfel, Miranda, Arnaboldi, Magda, Bell, Eric F., Silva, Leandro Beraldo e, Besla, Gurtina, Bhattacharya, Aparajito, Bhattacharya, Souradeep, Chandra, Vedant, Choi, Yumi, Collins, Michelle L. M., Cunningham, Emily C., Dalcanton, Julianne J., Escala, Ivanna, Foote, Hayden R., Ferguson, Annette M. N., Gibson, Benjamin J., Gnedin, Oleg Y., Guhathakurta, Puragra, Hawkins, Keith, Horta, Danny, Ibata, Rodrigo, Kallivayalil, Nitya, Koch, Eric W., Koposov, Sergey, Lewis, Geraint F., Macri, Lucas, McKinnon, Kevin A., Nidever, David L., Olsen, Knut A. G., Patel, Ekta, Petersen, Michael S., Petric, Andreea, Price-Whelan, Adrian M., Rich, R. Michael, Riley, Alexander H., Saha, Abhijit, Sanderson, Robyn E., Sharma, Sanjib, Sohn, Sangmo Tony, Soraisam, Monika D., Steinmetz, Matthias, Valluri, Monica, Vivas, A. Katherina, Williams, Benjamin F., Wojno, J. Leigh
As our nearest large neighbor, the Andromeda Galaxy provides a unique laboratory for investigating galaxy formation and the distribution and substructure properties of dark matter in a Milky Way-like galaxy. Here, we propose an initial 2-epoch ($\Del
Externí odkaz:
http://arxiv.org/abs/2306.12302
We define a physically-motivated measure for galactic bar length, called the dynamical length. The dynamical length of the bar corresponds to the radial extent of the orbits that are the backbone supporting the bar feature. We propose a direct observ
Externí odkaz:
http://arxiv.org/abs/2305.13366
Autor:
Paolino, Facundo Pérez, Bary, Jeffrey S., Petersen, Michael S., Ward-Duong, Kimberly, Tofflemire, Benjamin M., Follette, Katherine B., Mach, Heidi
We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA's Infrared Telescope Facility (IRTF), 12 spectra were collected over five consecutive nights, spanning $\approx$ 1.5 stellar rota
Externí odkaz:
http://arxiv.org/abs/2303.01574
Studying coupling between different galactic components is a challenging problem in galactic dynamics. Using basis function expansions (BFEs) and multichannel singular spectrum analysis (mSSA) as a means of dynamical data mining, we discover evidence
Externí odkaz:
http://arxiv.org/abs/2301.02256