Outputs (474)

Magnetic imaging of the outer solar atmosphere (MImOSA) (2021)
Journal Article
Peter, H., Ballester, E. A., Andretta, V., Auchère, F., Belluzzi, L., Bemporad, A., Berghmans, D., Buchlin, E., Calcines, A., Chitta, L., Dalmasse, K., Alemán, T. D. P., Feller, A., Froment, C., Harrison, R., Janvier, M., Matthews, S., Parenti, S., Przybylski, D., Solanki, S., …Bueno, J. T. (2022). Magnetic imaging of the outer solar atmosphere (MImOSA). Experimental Astronomy, 54, 185–225. https://doi.org/10.1007/s10686-021-09774-0

The magnetic activity of the Sun directly impacts the Earth and human life. Likewise, other stars will have an impact on the habitability of planets orbiting these host stars. Although the magnetic field at the surface of the Sun is reasonably well c... Read More about Magnetic imaging of the outer solar atmosphere (MImOSA).

Stellar feedback in a clumpy galaxy at z ∼ 3.4 (2021)
Journal Article
Iani, E., Zanella, A., Vernet, J., Richard, J., Gronke, M., Harrison, C., Arrigoni-Battaia, F., Rodighiero, G., Burkert, A., Behrendt, M., Chen, C.-C., Emsellem, E., Fensch, J., Hibon, P., Hilker, M., Le Floc’h, E., Mainieri, V., Swinbank, A., Valentino, F., Vanzella, E., & Zwaan, M. (2021). Stellar feedback in a clumpy galaxy at z ∼ 3.4. Monthly Notices of the Royal Astronomical Society, 507(3), 3830-3848. https://doi.org/10.1093/mnras/stab2376

Giant star-forming regions (clumps) are widespread features of galaxies at z ≈ 1−4. Theory predicts that they can play a crucial role in galaxy evolution, if they survive to stellar feedback for >50 Myr. Numerical simulations show that clumps’ surviv... Read More about Stellar feedback in a clumpy galaxy at z ∼ 3.4.

Satellites around Milky Way Analogs: Tension in the Number and Fraction of Quiescent Satellites Seen in Observations versus Simulations (2021)
Journal Article
Karunakaran, A., Spekkens, K., Oman, K. A., Simpson, C. M., Fattahi, A., Sand, D. J., Bennet, P., Crnojević, D., Frenk, C. S., Gómez, F. A., Grand, R. J., Jones, M. G., Marinacci, F., Mutlu-Pakdil, B., Navarro, J. F., & Zaritsky, D. (2021). Satellites around Milky Way Analogs: Tension in the Number and Fraction of Quiescent Satellites Seen in Observations versus Simulations. Astrophysical Journal Letters, 916(2), Article L19. https://doi.org/10.3847/2041-8213/ac0e3a

We compare the star-forming properties of satellites around Milky Way (MW) analogs from the Stage II release of the Satellites Around Galactic Analogs Survey (SAGA-ii) to those from the APOSTLE and Auriga cosmological zoom-in simulation suites. We us... Read More about Satellites around Milky Way Analogs: Tension in the Number and Fraction of Quiescent Satellites Seen in Observations versus Simulations.

Find the Gap: Black Hole Population Analysis with an Astrophysically Motivated Mass Function (2021)
Journal Article
Baxter, E. J., Croon, D., McDermott, S. D., & Sakstein, J. (2021). Find the Gap: Black Hole Population Analysis with an Astrophysically Motivated Mass Function. Astrophysical Journal Letters, 916(2), Article L16. https://doi.org/10.3847/2041-8213/ac11fc

We introduce a novel black hole mass function that realistically models the physics of pair-instability supernovae with a minimal number of parameters. Applying this to all events in the LIGO-Virgo Gravitational-Wave Transient Catalog 2 (GWTC-2), we... Read More about Find the Gap: Black Hole Population Analysis with an Astrophysically Motivated Mass Function.

Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations (2021)
Journal Article
Pearce, F. A., Kay, S. T., Barnes, D. J., Bahé, Y. M., & Bower, R. G. (2021). Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations. Monthly Notices of the Royal Astronomical Society, 507(2), 1606-1622. https://doi.org/10.1093/mnras/stab2194

The abundance and distribution of metals in galaxy clusters contain valuable information about their chemical history and evolution. By looking at how metallicity evolves with redshift, it is possible to constrain the different metal production chann... Read More about Redshift evolution of the hot intracluster gas metallicity in the C-EAGLE cluster simulations.

Dynamics of a degenerate Cs-Yb mixture with attractive interspecies interactions (2021)
Journal Article
Wilson, K., Guttridge, A., Liu, I.-K., Segal, J., Billam, T., Parker, N., Proukakis, N., & Cornish, S. (2021). Dynamics of a degenerate Cs-Yb mixture with attractive interspecies interactions. Physical Review Research, 3(3), Article 033096. https://doi.org/10.1103/physrevresearch.3.033096

We probe the collective dynamics of a quantum degenerate Bose-Bose mixture of 133Cs and 174Yb with attractive interspecies interactions. Specifically, we excite vertical center-of-mass oscillations of the Cs condensate. We observe significant damping... Read More about Dynamics of a degenerate Cs-Yb mixture with attractive interspecies interactions.

Infrared Surface Brightness Fluctuation Distances for MASSIVE and Type Ia Supernova Host Galaxies* (2021)
Journal Article
Jensen, J. B., Blakeslee, J. P., Ma, C.-P., Milne, P. A., Brown, P. J., Cantiello, M., Garnavich, P. M., Greene, J. E., Lucey, J. R., Phan, A., Tully, R. B., & Wood, C. M. (2021). Infrared Surface Brightness Fluctuation Distances for MASSIVE and Type Ia Supernova Host Galaxies*. Astrophysical Journal Supplement, 255(2), Article 21. https://doi.org/10.3847/1538-4365/ac01e7

We measured high-quality surface brightness fluctuation (SBF) distances for a sample of 63 massive early-type galaxies using the WFC3/IR camera on the Hubble Space Telescope. The median uncertainty on the SBF distance measurements is 0.085 mag, or 3.... Read More about Infrared Surface Brightness Fluctuation Distances for MASSIVE and Type Ia Supernova Host Galaxies*.

HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran Telescopio Canarias (2021)
Journal Article
Dhillon, V., Bezawada, N., Black, M., Dixon, S., Gamble, T., Gao, X., Henry, D., Kerry, P., Littlefair, S., Lunney, D., Marsh, T., Miller, C., Parsons, S., Ashley, R., Breedt, E., Brown, A., Dyer, M., Green, M., Pelisoli, I., Sahman, D., …García-Alvarez, D. (2021). HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran Telescopio Canarias. Monthly Notices of the Royal Astronomical Society, 507(1), 350-366. https://doi.org/10.1093/mnras/stab2130

HiPERCAM is a portable, quintuple-beam optical imager that saw first light on the 10.4-m Gran Telescopio Canarias (GTC) in 2018. The instrument uses re-imaging optics and four dichroic beamsplitters to record usgsrsiszs (320–1060 nm) images simultane... Read More about HiPERCAM: a quintuple-beam, high-speed optical imager on the 10.4-m Gran Telescopio Canarias.

Galaxy Morphological Classification Catalogue of the Dark Energy Survey Year 3 data with Convolutional Neural Networks (2021)
Journal Article
Cheng, T.-Y., Conselice, C. J., Aragón-Salamanca, A., Aguena, M., Allam, S., Andrade-Oliveira, F., Annis, J., Bluck, A., Brooks, D., Burke, D., Carrasco Kind, M., Carretero, J., Choi, A., Costanzi, M., da Costa, L., Pereira, M., De Vicente, J., Diehl, H., Drlica-Wagner, A., Eckert, K., …To, C. (2021). Galaxy Morphological Classification Catalogue of the Dark Energy Survey Year 3 data with Convolutional Neural Networks. Monthly Notices of the Royal Astronomical Society, 507(3), 4425-4444. https://doi.org/10.1093/mnras/stab2142

We present in this paper one of the largest galaxy morphological classification catalogues to date, including over 20 million galaxies, using the Dark Energy Survey (DES) Year 3 data based on convolutional neural networks (CNNs). Monochromatic i-band... Read More about Galaxy Morphological Classification Catalogue of the Dark Energy Survey Year 3 data with Convolutional Neural Networks.

Bhabha scattering at NNLO with next-to-soft stabilisation (2021)
Journal Article
Banerjee, P., Engel, T., Schalch, N., Signer, A., & Ulrich, Y. (2021). Bhabha scattering at NNLO with next-to-soft stabilisation. Physics Letters B, 820, https://doi.org/10.1016/j.physletb.2021.136547

A critical subject in fully differential QED calculations originates from numerical instabilities due to small fermion masses that act as regulators of collinear singularities. At next-to-next-to-leading order (NNLO) a major challenge is therefore to... Read More about Bhabha scattering at NNLO with next-to-soft stabilisation.