collaborators

7 papers

astro-ph.GA2026

Milky Way Atlas: A radial-velocity-resolved, three-dimensional map of H I within 1.25 kpc

Lewis McCallum, Laurin Söding, Mareike Berkner +9

We present a velocity-resolved three-dimensional map of local atomic hydrogen (HI) within 1.25 kpc of the Sun, tackling the challenge of converting emission from position-position-…

astro-ph.GA2026

SDSO1 is a Shocked Ghost Planetary Nebula in Front of M 31

Patrick Ogle, Mark Petersen, R. Michael Rich +12

We present new, deep narrowband imagery and discuss the nature of SDSO 1, the large [O III]-emitting nebula centered 1.5 degrees SE of M 31. We find strong evidence to support the…

astro-ph.GA2026

The radial component of the local Galactic magnetic field in 3D

Lewis McCallum, Philipp Frank, Sebastian Hutschenreuter +9

We present a distance-resolved reconstruction of the local line-of-sight Galactic magnetic field, , by combining a 3D electron density () map derived from dust map-i…

astro-ph.EP2025

WASP-12, shrouded in mystery or just cold gas?

Simon Daley-Yates, Ricarda Beckmann, Lewis McCallum +2

Observations of the planet-hosting star WASP-12 show a distinctive depression in the \ion{Mg}{ii} and \ion{Ca}{ii} resonance lines. This has been interpreted as a marker of atmosph…

astro-ph.GA2025

A three-dimensional, multi-wavelength view and time-dependent analysis of the Milky Way's local ionized gas

Lewis McCallum, Kenneth Wood, Robert Benjamin +2

This work is the continuation of a series attempting to characterize the local warm ionized medium through both static and time dependent simulations. We build upon our three dimen…

astro-ph.GA2025

Origin of the IRAS Vela Shell: New Insights from 3D Dust Mapping

Bore Annie Gao, Catherine Zucker, Tirupati Kumara Sridharan +15

The IRAS Vela Shell (IVS) is a structure of enhanced FIR emission located towards the Gum Nebula, a prominent region of emission in the local Milky Way shaped by various…