activity
20042025
most citedOn the He II Emission In Eta Carinae and the Origin of Its Spectroscopic Events

66 citations · 191 across the 7 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2025

On the Spatial Distribution of Luminous Blue Variables, B[e] Supergiants, and Wolf-Rayet stars in the Large Magellanic Cloud

John C. Martin, Roberta M. Humphreys, Kris Davidson

We examine the spatial distributions of LBVs, B[e] supergiants, and W-R stars in the LMC, to clarify their relative ages, evolutionary states, and relationships. This survey employ…

astro-ph.SR2025

The Infrared-Bright SW Knots in the Complex Ejecta of VY CMa

Roberta M. Humphreys, Terry J. Jones, Kris Davidson +4

The red hypergiant VY CMa is remarkable for its very visible record of high mass loss events observed over the range of wavelengths from the optical and infrared to the submillimet…

astro-ph.SR2024

The Hidden Clumps in VY CMa Uncovered by ALMA

Roberta M. Humphreys, A. M. S. Richards, Kris Davidson +3

The red hypergiant VY CMa is famous for its very visible record of high mass loss events. Recent CO observations with ALMA revealed three previously unknown large scale outflows (P…

astro-ph.SR2016★ 11 cited

Dissecting a SN impostor's circumstellar medium: MUSEing about the SHAPE of eta Car's outer ejecta

A. Mehner, W. Steffen, J. H. Groh +10

Aims. The structural inhomogeneities and kinematics of massive star nebulae are tracers of their mass-loss history. We conduct a three-dimensional morpho-kinematic analysis of the…

astro-ph.SR2015★ 33 cited

Eta Carinae's 2014.6 Spectroscopic Event: Clues to the Long-term Recovery from its Great Eruption

A. Mehner, K. Davidson, R. M. Humphreys +9

Aims. Every 5.5 years eta Car's light curve and spectrum change remarkably across all observed wavelength bands. We compare the recent spectroscopic event in mid-2014 to the events…

astro-ph2005★ 66 cited

On the He II Emission In Eta Carinae and the Origin of Its Spectroscopic Events

J. C. Martin, K. Davidson, R. M. Humphreys +2

We describe and analyze Hubble Space Telescope (HST) observations of transient emission near 4680 Å in Eta Car, reported earlier by Steiner & Damineli (2004). If, as seems probable…