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Outputs (11)

The Hubble Space Telescope Survey of M31 Satellite Galaxies. II. The Star Formation Histories of Ultrafaint Dwarf Galaxies (2023)
Journal Article
Savino, A., Weisz, D. R., Skillman, E. D., Dolphin, A., Cole, A. A., Kallivayalil, N., …van der Marel, R. P. (2023). The Hubble Space Telescope Survey of M31 Satellite Galaxies. II. The Star Formation Histories of Ultrafaint Dwarf Galaxies. Astrophysical Journal, 956(2), Article 86. https://doi.org/10.3847/1538-4357/acf46f

We present the lifetime star formation histories (SFHs) for six ultrafaint dwarf (UFD; M V > − 7.0, 4.9<log10(M*(z=0)/M⊙)<5.5 ) satellite galaxies of M31 based on deep color–magnitude diagrams constructed from Hubble Space Telescope imaging. These ar...

HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra (2023)
Journal Article
McKinnon, K. A., Cunningham, E. C., Rockosi, C. M., Guhathakurta, P., Escala, I., Kirby, E. N., & Deason, A. J. (2023). HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra. Astrophysical Journal, 951(1), Article 43. https://doi.org/10.3847/1538-4357/acd33d

The Halo Assembly in Lambda Cold Dark Matter: Observations in 7 Dimensions (HALO7D) survey measures the kinematics and chemical properties of stars in the Milky Way (MW) stellar halo to learn about the formation of our Galaxy. HALO7D consists of Keck... Read More about HALO7D. III. Chemical Abundances of Milky Way Halo Stars from Medium-resolution Spectra.

The 3D kinematics of stellar substructures in the periphery of the Large Magellanic Cloud (2023)
Journal Article
Navarrete, C., Aguado, D. S., Belokurov, V., Erkal, D., Deason, A., Cullinane, L., & Carballo-Bello, J. (2023). The 3D kinematics of stellar substructures in the periphery of the Large Magellanic Cloud. Monthly Notices of the Royal Astronomical Society, 523(3), 4720-4738. https://doi.org/10.1093/mnras/stad1698

We report the 3D kinematics of 27 Mira-like stars in the northern, eastern, and southern periphery of the Large Magellanic Cloud (LMC), based on Gaia proper motions and a dedicated spectroscopic follow-up. Low-resolution spectra were obtained for mor... Read More about The 3D kinematics of stellar substructures in the periphery of the Large Magellanic Cloud.

The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways (2023)
Journal Article
Bose, S., & Deason, A. J. (2023). The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways. Monthly Notices of the Royal Astronomical Society, 522(4), 5013-5021. https://doi.org/10.1093/mnras/stad1123

The stellar halo of the Milky Way records the history of its interactions with dwarf galaxies, whose subsequent destruction results in the formation of an extended stellar component. Recent works have suggested that galaxies with masses comparable to... Read More about The progenitor galaxies of stellar haloes as ‘failed’ Milky Ways.

Overview of the DESI Milky Way Survey (2023)
Journal Article
Cooper, A. P., Koposov, S. E., Allende Prieto, C., Manser, C. J., Kizhuprakkat, N., Myers, A. D., Dey, A., Gänsicke, B. T., Li, T. S., Rockosi, C., Valluri, M., Najita, J., Deason, A., Raichoor, A., Wang, M.-Y., Ting, Y.-S., Kim, B., Carrillo, A., Wang, W., Beraldo e Silva, L., …Zou, H. (2023). Overview of the DESI Milky Way Survey. Astrophysical Journal, 947(1), Article 37. https://doi.org/10.3847/1538-4357/acb3c0

We describe the Milky Way Survey (MWS) that will be undertaken with the Dark Energy Spectroscopic Instrument (DESI) on the Mayall 4 m telescope at the Kitt Peak National Observatory. Over the next 5 yr DESI MWS will observe approximately seven millio... Read More about Overview of the DESI Milky Way Survey.

Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations (2023)
Journal Article
Reina-Campos, M., Trujillo-Gomez, S., Pfeffer, J. L., Sills, A., Deason, A. J., Crain, R. A., & Diederik Kruijssen, J. M. (2023). Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations. Monthly Notices of the Royal Astronomical Society, 521(4), 6368–6382. https://doi.org/10.1093/mnras/stad920

We explore how diffuse stellar light and globular clusters (GCs) can be used to trace the matter distribution of their host halo using an observational methodology. For this, we use 117 simulated dark matter (DM) haloes from the
periodic volume of... Read More about Constraining the shape of dark matter haloes with globular clusters and diffuse stellar light in the E-MOSAICS simulations.

The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation (2023)
Journal Article
Jin, S., Trager, S. C., Dalton, G. B., Aguerri, J. A. L., Drew, J. E., Falcón-Barroso, J., Gänsicke, B. T., Hill, V., Iovino, A., Pieri, M. M., Poggianti, B. M., Smith, D. J. B., Vallenari, A., Abrams, D. C., Aguado, D. S., Antoja, T., Aragón-Salamanca, A., Ascasibar, Y., Babusiaux, C., Balcells, M., …Zurita, C. (2024). The wide-field, multiplexed, spectroscopic facility WEAVE: Survey design, overview, and simulated implementation. Monthly Notices of the Royal Astronomical Society, 530(3), 2688-2730. https://doi.org/10.1093/mnras/stad557

Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function (2023)
Journal Article
Deason, A. J., Koposov, S. E., Fattahi, A., & Grand, R. J. (2023). Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function. Monthly Notices of the Royal Astronomical Society, 520(4), 6091-6103. https://doi.org/10.1093/mnras/stad535

Accreted stellar populations are comprised of the remnants of destroyed galaxies, and often dominate the ‘stellar haloes’ of galaxies such as the Milky Way (MW). This ensemble of external contributors is a key indicator of the past assembly history o... Read More about Unravelling the mass spectrum of destroyed dwarf galaxies with the metallicity distribution function.