Zobrazeno 1 - 10
of 794
pro vyhledávání: '"P. Bruderer"'
Autor:
Bruderer, Martin
Queueing theory is used for modeling biological processes, traffic flows and many more real-life situations. Beyond that, queues describe systems out of equilibrium and can thus be considered as minimal models of non-equilibrium statistical mechanics
Externí odkaz:
http://arxiv.org/abs/2405.12746
Autor:
Bergin, Edwin A., Bosman, Arthur, Teague, Richard, Calahan, Jenny, Willacy, Karen, Cleeves, L. Ilsedore, Schwarz, Kamber, Zhang, Ke, Bruderer, Simon
We present the first detection of 13CCH in a protoplanetary disk (TW Hya). Using observations of C2H we measure CCH/13CCH = 65 +/- 20 in gas with a CO isotopic ratio of 12CO/13CO = 21 +/- 5 (Yoshida et al. 2022a). The TW Hya disk exhibits a gas phase
Externí odkaz:
http://arxiv.org/abs/2403.09739
We present iSLAT (the Interactive Spectral-Line Analysis Tool), a python-based graphical tool that allows users to interactively explore and manually fit line emission observed in molecular spectra. iSLAT adopts a simple slab model that simulates emi
Externí odkaz:
http://arxiv.org/abs/2402.04060
[Abridged] The inner few AU of disks around young stars are best probed in the infrared. The James Webb Space Telescope (JWST) is now starting to characterize the chemistry of these regions in unprecedented detail. One peculiar subset of sources are
Externí odkaz:
http://arxiv.org/abs/2311.12445
Autor:
Banzatti, Andrea, Pontoppidan, Klaus M., Carr, John, Jellison, Evan, Pascucci, Ilaria, Najita, Joan, Munoz-Romero, Carlos E., Oberg, Karin I., Kalyaan, Anusha, Pinilla, Paola, Krijt, Sebastiaan, Long, Feng, Lambrechts, Michiel, Rosotti, Giovanni, Herczeg, Gregory J., Salyk, Colette, Zhang, Ke, Bergin, Edwin, Ballering, Nick, Meyer, Michael R., Bruderer, Simon, collaboration, the JDISCS
Previous analyses of mid-infrared water spectra from young protoplanetary disks observed with the Spitzer-IRS found an anti-correlation between water luminosity and the millimeter dust disk radius observed with ALMA. This trend was suggested to be ev
Externí odkaz:
http://arxiv.org/abs/2307.03846
Autor:
Banzatti, Andrea, Pontoppidan, Klaus M., Chávez, José Pérez, Salyk, Colette, Diehl, Lindsey, Bruderer, Simon, Herczeg, Greg J., Carmona, Andres, Pascucci, Ilaria, Brittain, Sean, Jensen, Stanley, Grant, Sierra, van Dishoeck, Ewine F., Kamp, Inga, Bosman, Arthur D., Öberg, Karin I., Blake, Geoff A., Meyer, Michael R., Gaidos, Eric, Boogert, Adwin, Rayner, John T., Wheeler, Caleb
This work presents ground-based spectrally-resolved water emission at R = 30000-100000 over infrared wavelengths covered by JWST (2.9-12.8 $\mu$m). Two new surveys with iSHELL and VISIR are combined with previous spectra from CRIRES and TEXES to cove
Externí odkaz:
http://arxiv.org/abs/2209.08216
Autor:
Francis, Logan, van der Marel, Nienke, Johnstone, Doug, Akiyama, Eiji, Bruderer, Simon, Dong, Ruobing, Hashimoto, Jun, Liu, Hauyu Baobab, Muto, Takayuki, Yang, Yi
Large inner dust gaps in transition disks are frequently posited as evidence of giant planets sculpting gas and dust in the disk, or the opening of a gap by photoevaporative winds. Although the former hypothesis is strongly supported by the observati
Externí odkaz:
http://arxiv.org/abs/2208.01598
Autor:
Pirovano, L. M., Fedele, D., van Dishoeck, E. F., Hogerheijde, M. R., Lodato, G., Bruderer, S.
[Abridged] Far-infrared observations with Herschel revealed a surprisingly low abundance of cold-water reservoirs in protoplanetary discs. On the other hand, a handful of discs show emission of hot water transitions excited at temperatures above a fe
Externí odkaz:
http://arxiv.org/abs/2207.10744
Autor:
Bruderer, M.
The evolution of many stochastic systems is accurately described by random walks on graphs. We here explore the close connection between local steady-state fluctuations of random walks and the global structure of the underlying graph. Fluctuations ar
Externí odkaz:
http://arxiv.org/abs/2204.06087
Autor:
Leemker, M., Booth, A. S., van Dishoeck, E. F., Pérez-Sánchez, A. F., Szulágyi, J., Bosman, A. D., Bruderer, S., Facchini, S., Hogerheijde, M. R., Paneque-Carreño, T., Sturm, J. A.
Publikováno v:
A&A 663, A23 (2022)
[Abridged] Most disks observed at high angular resolution show substructures. Knowledge about the gas surface density and temperature is essential to understand these. The aim of this work is to constrain the gas temperature and surface density in tw
Externí odkaz:
http://arxiv.org/abs/2204.03666