Zobrazeno 11 - 20
of 128
pro vyhledávání: '"Hensley, Brandon S."'
Autor:
Limbach, Mary Anne, Soares-Furtado, Melinda, Vanderburg, Andrew, Best, William M. J., Cody, Ann Marie, D'Onghia, Elena, Heller, René, Hensley, Brandon S., Kounkel, Marina, Kraus, Adam, Mann, Andrew W., Robberto, Massimo, Rosen, Anna L., Townsend, Richard, Vos, Johanna M.
We present design considerations for the Transiting Exosatellites, Moons, and Planets in Orion (TEMPO) Survey with the Nancy Grace Roman Space Telescope. This proposed 30-day survey is designed to detect a population of transiting extrasolar satellit
Externí odkaz:
http://arxiv.org/abs/2209.12916
Autor:
Hensley, Brandon S., Draine, B. T.
Publikováno v:
ApJ, 948, 55 (2023)
We present a new model of interstellar dust in which large grains are a single composite material, ``astrodust,'' and nanoparticle-sized grains come in distinct varieties including polycyclic aromatic hydrocarbons (PAHs). We argue that a single-compo
Externí odkaz:
http://arxiv.org/abs/2208.12365
Autor:
Chastenet, Jérémy, De Looze, Ilse, Hensley, Brandon S., Vandenbroucke, Bert, Barlow, Mike J., Rho, Jeonghee, Ravi, Aravind P., Gomez, Haley L., Kirchschlager, Florian, Macías-Pérez, Juan, Matsuura, Mikako, Pattle, Kate, Ponthieu, Nicolas, Priestley, Felix D., Relaño, Monica, Ritacco, Alessia, Wesson, Roger
Supernova remnants (SNRs) are well-recognised dust producers, but their net dust production rate remains elusive due to uncertainties in grain properties that propagate into observed dust mass uncertainties, and determine how efficiently these grains
Externí odkaz:
http://arxiv.org/abs/2208.10935
Autor:
Chuss, David T., Hensley, Brandon S., Kogut, Alan J., Guerra, Jordan A., Nofi, Hayley C., Siah, Javad
We use archival COBE/DIRBE data to construct a map of polycyclic aromatic hydrocarbon (PAH) emission in the $\lambda$-Orionis region. The presence of the 3.3 $\mu$m PAH feature within the DIRBE 3.5 $\mu$m band and the corresponding lack of significan
Externí odkaz:
http://arxiv.org/abs/2208.09049
Galactic dust emission is often accounted for in cosmic microwave background (CMB) analyses by fitting a simple two-parameter modified blackbody (MBB) model in each pixel, which nominally accounts for the temperature and opacity of the dust. While th
Externí odkaz:
http://arxiv.org/abs/2207.14213
Autor:
Errard, Josquin, Remazeilles, Mathieu, Aumont, Jonathan, Delabrouille, Jacques, Green, Daniel, Hanany, Shaul, Hensley, Brandon S., Kogut, Alan
Publikováno v:
ApJ 940:68, November 2022
We assess the uncertainty with which a balloon-borne experiment, nominally called Tau Surveyor ($\tau S$), can measure the optical depth to reionization $\sigma(\tau)$ with given realistic constraints of instrument noise and foreground emissions. Usi
Externí odkaz:
http://arxiv.org/abs/2206.03389
Publikováno v:
The Astrophysical Journal, Volume 932, Number 2. June 22, 2022
We present a spectrum of the diffuse Galactic light (DGL) between 3700 and 10,000 A, obtained by correlating optical sky intensity with far-infrared dust emission. We use nearly 250,000 blank-sky spectra from BOSS/SDSS-III together with IRIS-reproces
Externí odkaz:
http://arxiv.org/abs/2201.01378
Using new large area maps of the cold neutral medium (CNM) fraction, $f_{\rm CNM}$, we investigate the relationship between the CNM, the abundance of polycyclic aromatic hydrocarbons (PAHs), and the anomalous microwave emission (AME). We first presen
Externí odkaz:
http://arxiv.org/abs/2111.03067
Autor:
Hensley, Brandon S., Clark, Susan E., Fanfani, Valentina, Krachmalnicoff, Nicoletta, Fabbian, Giulio, Poletti, Davide, Puglisi, Giuseppe, Coppi, Gabriele, Nibauer, Jacob, Gerasimov, Roman, Galitzki, Nicholas, Choi, Steve K., Ashton, Peter C., Baccigalupi, Carlo, Baxter, Eric, Burkhart, Blakesley, Calabrese, Erminia, Chluba, Jens, Errard, Josquin, Frolov, Andrei V., Hervías-Caimapo, Carlos, Huffenberger, Kevin M., Johnson, Bradley R., Jost, Baptiste, Keating, Brian, McCarrick, Heather, Nati, Federico, Rao, Mayuri Sathyanarayana, van Engelen, Alexander, Walker, Samantha, Wolz, Kevin, Xu, Zhilei, Zhu, Ningfeng, Zonca, Andrea
Observing in six frequency bands from 27 to 280 GHz over a large sky area, the Simons Observatory (SO) is poised to address many questions in Galactic astrophysics in addition to its principal cosmological goals. In this work, we provide quantitative
Externí odkaz:
http://arxiv.org/abs/2111.02425
Autor:
Guan, Yilun, Clark, Susan E., Hensley, Brandon S., Gallardo, Patricio A., Naess, Sigurd, Duell, Cody J., Aiola, Simone, Atkins, Zachary, Calabrese, Erminia, Choi, Steve K., Cothard, Nicholas F., Devlin, Mark, Duivenvoorden, Adriaan J., Dunkley, Jo, Dünner, Rolando, Ferraro, Simone, Hasselfield, Matthew, Hughes, John P., Koopman, Brian J., Kosowsky, Arthur B., Madhavacheril, Mathew S., McMahon, Jeff, Nati, Federico, Niemack, Michael D., Page, Lyman A., Salatino, Maria, Schaan, Emmanuel, Sehgal, Neelima, Sifón, Cristóbal, Staggs, Suzanne, Vavagiakis, Eve M., Wollack, Edward J., Xu, Zhilei
We present arcminute-resolution intensity and polarization maps of the Galactic center made with the Atacama Cosmology Telescope (ACT). The maps cover a 32 deg$^2$ field at 98, 150, and 224 GHz with $\vert l\vert\le4^\circ$, $\vert b\vert\le2^\circ$.
Externí odkaz:
http://arxiv.org/abs/2105.05267