Calbuco & ZeroGravity
Hey, I’ve been looking at your research on exoplanet atmospheres, and I’m thinking about how volcanic outgassing on rocky worlds could really shift their climates. Want to dive into that?
That's a fascinating angle. Sure, let's unpack how outgassing could tweak a planet's temperature and composition—just keep the data tight, otherwise it's a lot of noise for a very short gain.
Sure thing, let’s focus on the main players: CO₂, SO₂, H₂O vapor, and trace gases. Outgassing pumps CO₂ into the atmosphere, boosting greenhouse warming, while SO₂ can form aerosols that actually reflect sunlight, cooling the surface. On a rocky exoplanet with a thin atmosphere, a spike in volcanic flux can raise surface temps by tens of degrees, but the SO₂ haze could offset that if the volcanoes are prolific. The net effect depends on eruption style, magma composition, and the planet’s gravity. If we can get the gas ratios from a spectral snapshot, we’ll have a good estimate of the temperature shift. Keep it tight, no fluff.
Sounds solid, but remember even a small change in the CO₂–SO₂ balance can swing a planet from temperate to runaway in a few millennia. The spectral window you’re proposing is tight; we’ll need high‑S/N to tease out the trace gases before they blur into the noise. Let’s start with a baseline model and then layer in episodic eruptions to see the extremes.
Right, let’s set up a baseline first. I’ll run a 1‑D radiative‑convective model with a steady CO₂ level of about 10⁻³, then add a SO₂ spike of 10⁻⁵ to see the aerosol effect. After that, we can throw in a big eruption event—double the CO₂ for a decade, and spike SO₂ to 5×10⁻⁵—to watch the temperature run‑away scenario. We’ll need a 100‑m resolution for the spectral line list to keep the noise low. I’ll pull the data from the latest exo‑atmosphere database and start crunching. How does that sound?
Sounds rigorous enough. Just remember the CO₂ doubling could push the surface past a critical point before the SO₂ haze kicks in—watch that tipping threshold. Let’s see what the numbers say, but keep an eye on the aerosol opacity; it’s the razor’s edge here.
Got it, I’ll keep a close eye on that CO₂/ SO₂ tipping point. I’ll run the baseline, then the doubled CO₂ episode, and track the aerosol optical depth in real time. I’ll ping you with the temperature curves and opacity values as soon as the numbers come in. Stay ready for a surprise spike.
Sounds like a plan. Keep the data tight, and let me know if the numbers start flirting with that runaway boundary. I'll be ready to crunch the curves as soon as they hit me.