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Simultaneous Measurements of Star Formation and Supermassive Black Hole Growth in Galaxies

Pope, Alexandra and Armus, Lee and Murphy, Eric and Aalto, Susanne and Alexander, David and Appleton, Philip and Barger, Amy and Bradford, Matt and Capak, Peter and Casey, Caitlin and Charmandaris, Vassilis and Chary, Ranga and Cooray, Asantha and Condon, Jim and Diaz Santos, Tanio and Dickinson, Mark and Farrah, Duncan and Ferkinhoff, Carl and Grogin, Norman and Hickox, Ryan and Kirkpatrick, Allison and Kotaro, Kohno and Matthews, Allison and Narayanan, Desika and Riechers, Dominik and Sajina, Anna and Sargent, Mark and Scott, Douglas and Smith, J. D. and Stacey, Gordon and Veilleux, Sylvain and Vieira, Joaquin (2019) Simultaneous Measurements of Star Formation and Supermassive Black Hole Growth in Galaxies. Astro2020 Science White Paper, . (Unpublished)

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Galaxies grow their supermassive black holes in concert with their stars, although the relationship between these major galactic components is poorly understood. Observations of the cosmic growth of stars and black holes in galaxies suffer from disjoint samples and the strong effects of dust attenuation. The thermal infrared holds incredible potential for simultaneously measuring both the star formation and black hole accretion rates in large samples of galaxies covering a wide range of physical conditions. Spitzer demonstrated this potential at low redshift, and by observing some of the most luminous galaxies at z~2. JWST will apply these methods to normal galaxies at these epochs, but will not be able to generate large spectroscopic samples or access the thermal infrared at high-redshift. An order of magnitude gap in our wavelength coverage will persist between JWST and ALMA. A large, cold infrared telescope can fill this gap to determine when (in cosmic time), and where (within the cosmic web), stars and black holes co-evolve, by measuring these processes simultaneously in statistically complete and unbiased samples of galaxies to z>8. A next-generation radio interferometer will have the resolution and sensitivity to measure star-formation and nuclear accretion in even the dustiest galaxies. Together, the thermal infrared and radio can uniquely determine how stars and supermassive blackholes co-evolve in galaxies over cosmic time.

Item Type:Report or Paper (White Paper)
Related URLs:
URLURL TypeDescription Paper
Pope, Alexandra0000-0001-8592-2706
Armus, Lee0000-0003-3498-2973
Appleton, Philip0000-0002-7607-8766
Capak, Peter0000-0003-3578-6843
Chary, Ranga0000-0001-7583-0621
Diaz Santos, Tanio0000-0003-0699-6083
Group:Infrared Processing and Analysis Center (IPAC)
Series Name:Astro2020 Science White Paper
Record Number:CaltechAUTHORS:20190813-083044401
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:97852
Deposited By: Tony Diaz
Deposited On:13 Aug 2019 18:24
Last Modified:03 Oct 2019 21:35

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