Zobrazeno 1 - 10
of 924
pro vyhledávání: '"Sloan G"'
Autor:
Lu, Cicero X., Mittal, Tushar, Chen, Christine H., Li, Alexis Y., Worthen, Kadin, Sargent, B. A., Lisse, Carey M., Sloan, G. C., Hines, Dean C., Watson, Dan M., Rebollido, Isabel, Ren, Bin B., Green, Joel D.
Debris disks, which consist of dust, planetesimals, planets, and gas, offer a unique window into the mineralogical composition of their parent bodies, especially during the critical phase of terrestrial planet formation spanning 10 to a few hundred m
Externí odkaz:
http://arxiv.org/abs/2501.01484
Autor:
Sloan, G. C., Kraemer, K. E., Aringer, B., Cami, J., Eriksson, K., Hoefner, S., Lagadec, E., Matsuura, M., McDonald, I., Montiel, E., Sahai, R., Zijlstra, A. A.
Publikováno v:
Galaxies 12 (2024), 61
The Medium-Resolution Spectrometer on the Mid-Infrared Instrument on JWST obtained spectra of three carbon stars in the Large Magellanic Cloud. Two of the spectra differ significantly from spectra obtained ~16-19 years earlier with the Infrared Spect
Externí odkaz:
http://arxiv.org/abs/2411.12842
Publikováno v:
The Astrophysical Journal, 973:158 (9pp), 2024 October 1
We present spectra of 12 of the reddest, and hence dustiest, S stars in the Milky Way, observed with the FORCAST grisms on SOFIA. S stars are asymptotic giant branch (AGB) stars with C/O$\sim$1, so their molecular and dust chemistries are dominated b
Externí odkaz:
http://arxiv.org/abs/2409.20316
Autor:
Law, David R., Argyriou, Ioannis, Gordon, Karl D., Sloan, G. C., Gasman, Danny, Glasse, Alistair, Larson, Kirsten, Fletcher, Leigh N., Labiano, Alvaro, Noriega-Crespo, Alberto
We describe the spectrophotometric calibration of the Mid-Infrared Instrument's (MIRI) Medium Resolution Spectrometer (MRS) aboard the James Webb Space Telescope (JWST). This calibration is complicated by a time-dependent evolution in the effective t
Externí odkaz:
http://arxiv.org/abs/2409.15435
Autor:
Gordon, Karl D., Sloan, G. C., Marin, Macarena Garcia, Libralato, Mattia, Rieke, George, Aguilar, Jonathan A., Bohlin, Ralph, Cracraft, Misty, Decleir, Marjorie, Gaspar, Andras, Kendrew, Sarah, Law, David R., Noriega-Crespo, Alberto, Regan, Michael
The absolute flux calibration of the Mid-Infrared Instrument Imaging and Coronagraphy is based on observations of multiple stars taken during the first 2.5 years of JWST operations. The observations were designed to ensure that the flux calibration i
Externí odkaz:
http://arxiv.org/abs/2409.10443
Autor:
Chai, Yiwei, Chen, Christine H., Worthen, Kadin, Li, Alexis, Sefilian, Antranik, Balmer, William, Hines, Dean C., Law, David R., Sargent, B. A., Wyatt, Mark, Lu, Cicero X., Perrin, Marshall D., Rebollido, Isabel, Rickman, Emily, Sloan, G. C.
We report JWST MIRI MRS observations of the $\beta$ Pictoris moving group member, $\eta$ Telescopii ($\eta$ Tel) A and its brown dwarf binary companion, $\eta$ Tel B. Following PSF subtraction, we recover the spatially resolved flux from the debris d
Externí odkaz:
http://arxiv.org/abs/2408.11692
Autor:
Chen, Christine H., Lu, Cicero X., Worthen, Kadin, Law, David R., Sargent, B. A., Moro-Martin, Amaya, Sloan, G. C., Lisse, Carey M., Watson, Dan M., Girard, Julien H., Chai, Yiwei, Hines, Dean C., Kammerer, Jens, Li, Alexis, Perrin, Marshall, Pueyo, Laurent, Rebollido, Isabel, Stapelfeldt, Karl R., Stark, Christopher, Werner, Michael W.
Modeling observations of the archetypal debris disk around $\beta$ Pic, obtained in 2023 January with the MIRI MRS on board JWST, reveals significant differences compared with that obtained with the IRS on board Spitzer. The bright 5 - 15 $\mu$m cont
Externí odkaz:
http://arxiv.org/abs/2407.04661
Autor:
Gasman, Danny, Argyriou, Ioannis, Morrison, Jane E., Law, David R., Glasse, Alistair, Gordon, Karl D., Kavanagh, Patrick J., Lage, Craig, Patapis, Polychronis, Sloan, G. C.
The JWST has been collecting scientific data for over two years now. Scientists are now looking deeper into the data, which introduces the need to correct known systematic effects. Important limiting factors for the MIRI/MRS are the pointing accuracy
Externí odkaz:
http://arxiv.org/abs/2406.10835
Autor:
Kuchar, T. A., Sloan, G. C., Mizuno, D. R., Kraemer, Kathleen E., Boyer, M. L., Groenewegen, Martin A. T., Jones, O. C., Kemper, F., McDonald, Iain, Oliveira, Joana M., Sewiło, Marta, Srinivasan, Sundar, van Loon, Jacco Th., Zijlstra, Albert
Publikováno v:
AJ 167 149 (2024)
We present point-source photometry from the Spitzer Space Telescope's final survey of the Small Magellanic Cloud (SMC). We mapped 30 square degrees in two epochs in 2017, with the second extending to early 2018 at 3.6 and 4.5 microns using the Infrar
Externí odkaz:
http://arxiv.org/abs/2403.06755
Autor:
Worthen, Kadin, Chen, Christine H., Law, David R., Lu, Cicero X., Hoch, Kielan, Chai, Yiwei, Sloan, G. C., Sargent, B. A., Kammerer, Jens, Hines, Dean C., Rebollido, Isabel, Balmer, William O., Perrin, Marshall D., Watson, Dan M., Pueyo, Laurent, Girard, Julien H., Lisse, Carey M., Stark, Christopher C.
We present JWST MIRI Medium Resolution Spectrograph (MRS) observations of the $\beta$ Pictoris system. We detect an infrared excess from the central unresolved point source from 5 to 7.5 $\mu$m which is indicative of dust within the inner $\sim$7 au
Externí odkaz:
http://arxiv.org/abs/2401.16361