V4141 Sgr: Outflows and repeated outbursts

Abstract

In this work, we analyze the ongoing brightening of the poorly studied symbiotic star V4141 Sgr and examine its long-term variability. We present new low-resolution spectroscopic observations of the system in its bright state and combine them with multi-color photometric data from our observations, ASAS-SN, ATLAS, and Gaia DR3. To investigate its long-term evolution, we also incorporate historical data, including photographic plates, constructing a light curve spanning more than a century. Our analysis reveals that V4141 Sgr has undergone multiple outbursts, with at least one exhibiting characteristics typical of "slow" symbiotic novae. The current outburst is characterized by the ejection of optically thick material and possibly bipolar jets, a phenomenon observed in only a small fraction of symbiotic stars. These findings establish V4141 Sgr as an intriguing target for continued monitoring.

6 pages, 7 figures; accepted in A&A Letters

References in corpus (25)

• Gaia Data Release 3: Summary of the content and survey properties
• Estimating distances from parallaxes. V: Geometric and photogeometric distances to 1.47 billion stars in Gaia Early Data Release 3
• The Man Behind the Curtain: X-rays Drive the UV through NIR Variability in the 2013 AGN Outburst in NGC 2617
• ATLAS: A High-Cadence All-Sky Survey System
• The All-Sky Automated Survey for Supernovae (ASAS-SN) Light Curve Server v1.0
• A catalogue of symbiotic stars
• Design and operation of the ATLAS Transient Science Server
• Gaia Data Release 3: Processing and validation of BP/RP low-resolution spectral data
• Gaia Data Release 3: External calibration of BP/RP low-resolution spectroscopic data
• A census of symbiotic stars in the 2MASS, WISE and Gaia surveys
• The symbiotic binary system RX Puppis: a possible recurrent nova with a Mira companion
• Nebular abundances of southern symbiotic stars
• Transient jets in the symbiotic prototype Z Andromedae
• Distinguishing between symbiotic stars and planetary nebulae
• Regulation of accretion by its outflow in a symbiotic star: the 2016 outflow fast state of MWC 560
• New outburst of the symbiotic nova AG Peg after 165 years
• Discovery of a bipolar and highly variable mass outflow from the symbiotic binary StHa 190
• Gaia18aen: First symbiotic star discovered by Gaia
• AG Pegasi - now a classical symbiotic star in outburst?
• Evidence for bipolar jets from the optical spectra of the prototypical symbiotic star Z Andromedae
• Bipolar ejection by the symbiotic binary system Z And during its 2006 outburst
• The path to Z And-type outbursts: The case of V426 Sagittae (HBHA 1704-05)
• V618 Sgr: Galactic eclipsing symbiotic nova detected in repeated outbursts
• LMC S154: the first Magellanic symbiotic recurrent nova
• The symbiotic binary St 2-22: Orbital and stellar parameters and jet evolution following its 2019 outburst