11 Result(s)

Article

Observations of luminous infrared galaxies with the Spitzer Space Telescope

Luminous and ultraluminous infrared galaxies have been an active area of galaxy research since their discovery more than three decades ago. With its vast increase in sensitivity in the infrared, Spitzer played...

L. Armus, V. Charmandaris, B. T. Soifer in Nature Astronomy (2020)

Article

Luminous infrared galaxies with the submillimeter array: probing the extremes of star formation

Luminous and Ultraluminous infrared galaxies (ULIRGs) contain the most intense regions of star formation in the local universe. Because molecular gas is the fuel for current and future star formation, the phy...

C. D. Wilson, G. R. Petitpas, D. Iono, A. Peck, M. Krips… in Astrophysics and Space Science (2008)

Chapter and Conference Paper

Luminous infrared galaxies with the submillimeter array: probing the extremes of star formation

Luminous and Ultraluminous infrared galaxies (ULIRGs) contain the most intense regions of star formation in the local universe. Because molecular gas is the fuel for current and future star formation, the phys...

C. D. Wilson, G. R. Petitpas, D. Iono… in Science with the Atacama Large Millimeter … (2008)

Chapter and Conference Paper

VAN DER KRUIT TO SPITZER: A NEW LOOK AT THE FAR–INFRARED–RADIO CORRELATION

We present an initial look at the far-infrared–radio correlation within the starforming disks of four nearby, nearly face–on galaxies (NGC 2403, NGC3031, NGC5194, and NGC6946). Using Spitzer MIPS imaging and W...

E.J Murphy1, R. Braun, G. Helou, L. Armus, J.D.P. Kenney in ISLAND UNIVERSES (2007)

Chapter and Conference Paper

The Influence of Black Hole Mass and Accretion Rate on the FRI/FRII Radio Galaxy Dichotomy

We use medium resolution optical spectra of 3CR radio galaxies to estimate their black hole masses and accretion rates. Black hole masses are found from central stellar velocity dispersions, and accretion rate...

M. Wold, M. Lacy, L. Armus in Growing Black Holes: Accretion in a Cosmological Context (2005)

Article

The afterglow, redshift and extreme energetics of the γ-ray burst of 23 January 1999

Long-lived emission, known as afterglow, has now been detected from about a dozen γ-ray bursts. Distance determinations place the bursts at cosmological distances, with redshifts, z, ranging from ∼1 to 3. The ene...

S. R. Kulkarni, S. G. Djorgovski, S. C. Odewahn, J. S. Bloom, R. R. Gal… in Nature (1999)

Article

High Resolution WFPC2 Imaging of IRAS 09104 + 4109

L. Armus, B. T. Soifer, G. Neugebauer in Astrophysics and Space Science (1999)

Chapter

Near- and Mid-IR Imaging of the Nuclear Starburst in NGC 3079

The nearly edge-on Sc galaxy NGC 3079 displays strong nuclear optical emission lines of Ha, Hβ, [NII], [SII], [OI] and [OIII], and has been classified as a LINER based on the widths and relative fluxes of these l...

L. Armus, D. L. Shupe, K. Matthews, G. Neugebauer… in Infrared Astronomy with Arrays (1994)

Chapter

Near-Infrared Imaging of Ultraluminous IRAS Galaxies

IRAS discovered a class of objects which emit most of their radiation at infrared wavelengths and which possess bolometric luminosities comparable to those of classical quasars. Due to their extreme power, and...

J. Surace, L. Armus, J. Graham, K. Matthews… in Infrared Astronomy with Arrays (1994)

Chapter

JHK and 3.3 µm PAH Imaging of the Starburst Ring in the Type 1 Seyfert Galaxy NGC 7469

Imaging of NGC 7469 in the J, H, & K bands shows that the starburst ‘ring’ is a tight inner spiral with arms that extend 4″ NW and SE from the nucleus, as well as distinct infrared hotspots associated with the...

J. M. Mazzarella, G. M. Voit, B. T. Soifer, K. Matthews… in Infrared Astronomy with Arrays (1994)