Kinematic and Photometric Evidence for a Bar in NGC 2683

TL;DR

This study combines spectroscopic and imaging data to provide evidence for a bar structure in NGC 2683, analyzing its kinematic and photometric features to determine the bar's orientation and strength.

Contribution

It offers new kinematic and photometric evidence for a bar in NGC 2683 and constrains its orientation and strength.

Findings

Detection of a figure-of-eight velocity pattern in the galaxy's inner region

Observation of twisted isovelocity contours indicating non-circular motions

Identification of boxy isophotes supporting the presence of a bar

Abstract

We present optical long-slit and SparsePak Integral Field Unit emission line spectroscopy along with optical broadband and near IR images of the edge-on spiral galaxy NGC 2683. We find a multi-valued, figure-of-eight velocity structure in the inner 45 arcsec of the long-slit spectrum and twisted isovelocity contours in the velocity field. We also find, regardless of wavelength, that the galaxy isophotes are boxy. We argue that taken together, these kinematic and photometric features are evidence for the presence of a bar in NGC 2683. We use our data to constrain the orientation and strength of the bar.